Hagoromo Ōtsutsuki: The Last Enemy That Shall Be Destroyed

[Incendiary]

Hagoromo is aware of the Elder Toad's Prophecy:

Spoiler

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And yet, the prophecy implies that Naruto will fight Sasuke:

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Hagoromo smirking:

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That is an interesting point. I actually always took that prophecy as talking about not Sasuke, but the Obito / Madara combo.

I think Obito definitely counts as a "young man", and remember this scene?

Spoiler

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*Destiny* is not always clear cut.

 

[GhostProject]

This is BS.

Sasuke leaving the village was solely the fault of the village. It was them who committed the genocide of an oppressed people. Konoha is built on a Senju "will of fire". In the end the Senju (yang) system only cared about understanding and loving others when it was convenient for them. The "will of fire" is a complete sham.

Madara was willing to work with Hashirama, but was forced to leave the village after realizing that the Uchiha clan were going to be wiped out under the future policies of Tobirama. In the end Hashirama had no problem with killing those who threatened his established system. So much for understanding and love; Hashirama himself enforced his peace through might.

I would disagree, Hashirama only wanted the best for his people and wasn't willing to compromise his ethics. However, he wasn't aggressive enough to deal with Tobirama who was a radical, which was a mistake in his policy. An honest mistake because he trusted his brother and didn't want to fight him.

Madara was also an extremist. He became aggressive and essentially declared war on the leaf all on his own accord. Also, Sasuke's path of revenge and a lack of caring for others led to him leaving the village. I would forgive him though due to the Uchiha Massacre injustice, which was not an act of the leaf or Senju, but an act of the power-hungry madman Danzo.

A lot of good came of the Senju Way (Will of Fire), but a lot of bad also happened because it is a free and trusting system. People like Danzo and Tobirama took advantage of the fact that they can manipulate such a system. Danzo, Tobirama, Madara, and Sasuke are all accountable for their actions.

 

[adeshina365]

I would disagree, Hashirama only wanted the best for his people and wasn't willing to compromise his ethics. However, he wasn't aggressive enough to deal with Tobirama who was a radical, which was a mistake in his policy. An honest mistake because he trusted his brother and didn't want to fight him.

Hashirama's policy includes the use of might to enforce peace. This doesn't differ from the Indra's stance.

Madara was also an extremist. He became aggressive and essentially declared war on the leaf all on his own accord. Also, Sasuke's path of revenge and a lack of caring for others led to him leaving the village. I would forgive him though due to the Uchiha Massacre injustice, which was not an act of the leaf or Senju, but an act of the power-hungry madman Danzo.

Of course Madara became an extremist, extremism is bred from extremism. The end goal of Konoha was to wipe out the Uchiha. Madara saw that coming decades before it actually happened.

Hiruzen and the village elders were also architects of the Uchiha genocide.

Sasuke left the village do to his lack of care for others? What a load of absolute bullshit. The village (who were responsible for the genocide) had no intention of prosecuting Itachi. This forced Sasuke to take matters into his own hands.

A lot of good came of the Senju Way (Will of Fire), but a lot of bad also happened because it is a free and trusting system. People like Danzo and Tobirama took advantage of the fact that they can manipulate such a system. Danzo, Tobirama, Madara, and Sasuke are all accountable for their actions.

This is a load of bullshit. Hashirama himself acknowledges to Sasuke that Madara was right. The village system (which is Senju at its foundation) breeds more hatred. In the end the will of fire is a selective principle; in the end the village had no problem trampling over others when it was convenient. The will of fire is a complete sham.

As I stated before, the Uchiha cooperated 110% fully with the Senju mandate. They were driven into a prison and put into a position in which hatred for them would only increase. Hiruzen could changed this position, but was also unwilling to give power to people who were directly responsible for the foundation of Konoha. The Senju (yang) are power hungry, there's no way around it.

Without the Uchiha, there would have been no Konoha. The sham that is the will of fire is built off the blood of Uchiha who cooperated even when they were treated like garbage. No one else in the entirey of this manga have cooperated despite being treated like this. No one.

 

[Hinageshi]

I think what it comes down to is that Kaguya was right, if I'm reading her motivations correctly. Whatever wars had come before the Shinju fruit was eaten, they were human and human alone. Humans were not meant to have the ability to use chakra. I think nothing illustrates this better than the Uchiha, who if Tobirama is to be believed, have a neurological disorder in which traumatic events and remembrance flood them with anger. Anger of course, floods the brain with chemicals that cause cause risky/reckless behavior and also seems to change the chemicals that make up love into making the brain feel anger. This is passed down genetically. Imagine if we focused on other clans to see if they some similar genetic predispositions towards neuroatypical behavior in a world with child soldiers and massive killing seems to be the norm. I'm sure we'd find similar problems in the other Ootsutsuki descendents.

What we have is a world where the moral compass is far different from our own, with people who would be deemed unfit for service serving in very powerful positions or able to acquire extreme power. Imagine a real sociopath - which I honestly feel Danzo might be - in a powerful position in the Narutoverse.


TL;DR Kaguya was right and Hagoromo/Hamura should have never procreated or spread ninshu because crazy seems to go hand in hand with chakra because the power is stolen.

 

[GhostProject]

Hashirama's policy includes the use of might to enforce peace. This doesn't differ from the Indra's stance.


Of course Madara became an extremist, extremism is bred from extremism. The end goal of Konoha was to wipe out the Uchiha. Madara saw that coming decades before it actually happened.

Hiruzen and the village elders were also architects of the Uchiha genocide.

Sasuke left the village do to his lack of care for others? What a load of absolute bullshit. The village (who were responsible for the genocide) had no intention of prosecuting Itachi. This forced Sasuke to take matters into his own hands.



This is a load of bullshit. Hashirama himself acknowledges to Sasuke that Madara was right. The village system (which is Senju at its foundation) breeds more hatred. In the end the will of fire is a selective principle; in the end the village had no problem trampling over others when it was convenient. The will of fire is a complete sham.

As I stated before, the Uchiha cooperated 110% fully with the Senju mandate. They were driven into a prison and put into a position in which hatred for them would only increase. Hiruzen could changed this position, but was also unwilling to give power to people who were directly responsible for the foundation of Konoha. The Senju (yang) are power hungry, there's no way around it.

Without the Uchiha, there would have been no Konoha. The sham that is the will of fire is built off the blood of Uchiha who cooperated even when they were treated like garbage. No one else in the entirey of this manga have cooperated despite being treated like this. No one.

Hashirama used power to protect, not power to enforce. Madara was correct in that the leaf was heading in an incorrect direction against the Uchiha. He was not correct in his actions, however. Due to Madara's actions, Hashirama had to protect the Leaf from him, meanwhile Tobirama became even more politically justified in his actions and secured his future Hokage title. Madara then led an extremely selfish life afterwards, plotting to rid humanity of its free will with IT. Hashirama made a mistake, but he was not evil. Madara's actions however, were.

Hiruzen didn't agree with the solution of Genocide, he only mobilized defenses in the possibility of the coup. Danzo is at blame, not the system. Hiruzen wasn't exactly in a position to remove Danzo from his position, and it is unlawful to kill him. As for giving power to them after all of Tobirama's policies, that would take time. Not only that, but giving power to a section of the village that is planning a coup, is not in the best interest of the village. Hiruzen was in a difficult place.

And yes, Sasuke is extremely apathetic and uncaring towards anyone. He could have worked his way up through the ranks and eventually dealt with Itachi as a member or leader in the Leaf, and possibly eventually uncovered the truth of Danzo and the elders still. He didn't have to be so harsh to his best friend neither, there were better solutions at every point to his path.

Tobirama and Danzo do not represent the Leaf, and Hiruzen and Hashirama did what they could, but had the mistake of inaction whereas men like Tobirama and Danzo took action.

The Will of Fire is everything honorable and ethical within this manga. The Uchiha lacked a strong leader after Madara abandoned them which is why they were never represented. Obito later abandoned them as well, and by the time someone like Shisui could have led them, the Uchiha were already planning a coup.

The "Curse of Hatred" claimed its victims. Madara dug his clan deeper into a hole because he resorted to violence early instead of figuring out how to come to a compromise. Sasuke made his life more difficult because he chose to fight his friends in search of vengeance, when he should have searched for leadership within the leaf. Obito gave up being Hokage because he followed Madara.

Characters like Tobirama and Danzo going unchecked combined with violent responses from the Uchiha clan members led to this. Admittedly, Will of Fire leaders were prone to inaction, however, they never intended for the Uchiha clan to be wiped out.

Hashirama would have focused on a long term plan with Madara, had Madara not decided to leave and lead a life of violence. Madara abandoned his people who needed him and allowed Tobirama to politically move uncontested.

There are faults at both sides, but the violent responses were not justified nor in the best interest of the Uchiha Clan.

 

[SIR HERDERP PRESIDERP SDO]

If this theory comes true, then:

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[Hinageshi]

If this theory comes true, then:

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you forgot to put Kishi and that kush. Gotta have Kishi and his kush.

 

[Angelic.]

If this theory comes true, then:

Spoiler

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oh no are there two more lines coming out of hago from above? D:

if the curse of hatred came from kaguya and went to indra, then hago should have something too.

 

[SIR HERDERP PRESIDERP SDO]

oh no are there two more lines coming out of hago from above? D:

if the curse of hatred came from kaguya and went to indra, then hago should have something too.

Will Of The Shinju?

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Spoiler

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[adeshina365]

Hashirama used power to protect, not power to enforce. Madara was correct in that the leaf was heading in an incorrect direction against the Uchiha. He was not correct in his actions, however. Due to Madara's actions, Hashirama had to protect the Leaf from him, meanwhile Tobirama became even more politically justified in his actions and secured his future Hokage title. Madara then led an extremely selfish life afterwards, plotting to rid humanity of its free will with IT. Hashirama made a mistake, but he was not evil. Madara's actions however, were.

Hiruzen didn't agree with the solution of Genocide, he only mobilized defenses in the possibility of the coup. Danzo is at blame, not the system. Hiruzen wasn't exactly in a position to remove Danzo from his position, and it is unlawful to kill him. As for giving power to them after all of Tobirama's policies, that would take time. Not only that, but giving power to a section of the village that is planning a coup, is not in the best interest of the village. Hiruzen was in a difficult place.

And yes, Sasuke is extremely apathetic and uncaring towards anyone. He could have worked his way up through the ranks and eventually dealt with Itachi as a member or leader in the Leaf, and possibly eventually uncovered the truth of Danzo and the elders still. He didn't have to be so harsh to his best friend neither, there were better solutions at every point to his path.

Tobirama and Danzo do not represent the Leaf, and Hiruzen and Hashirama did what they could, but had the mistake of inaction whereas men like Tobirama and Danzo took action.

The Will of Fire is everything honorable and ethical within this manga. The Uchiha lacked a strong leader after Madara abandoned them which is why they were never represented. Obito later abandoned them as well, and by the time someone like Shisui could have led them, the Uchiha were already planning a coup.

The "Curse of Hatred" claimed its victims. Madara dug his clan deeper into a hole because he resorted to violence early instead of figuring out how to come to a compromise. Sasuke made his life more difficult because he chose to fight his friends in search of vengeance, when he should have searched for leadership within the leaf. Obito gave up being Hokage because he followed Madara.

Characters like Tobirama and Danzo going unchecked combined with violent responses from the Uchiha clan members led to this. Admittedly, Will of Fire leaders were prone to inaction, however, they never intended for the Uchiha clan to be wiped out.

Hashirama would have focused on a long term plan with Madara, had Madara not decided to leave and lead a life of violence. Madara abandoned his people who needed him and allowed Tobirama to politically move uncontested.

There are faults at both sides, but the violent responses were not justified nor in the best interest of the Uchiha Clan.

There's so much nonsense in this post that I wont even bother responding anymore.

You're **** riding the Senju narrative instead of objectively analyzing the concrete facts of the manga.

 

[Flaming Amaterasu]

The Will of Fire is everything honorable and ethical within this manga. The Uchiha lacked a strong leader after Madara abandoned them which is why they were never represented. Obito later abandoned them as well, and by the time someone like Shisui could have led them, the Uchiha were already planning a coup.

The "Curse of Hatred" claimed its victims. Madara dug his clan deeper into a hole because he resorted to violence early instead of figuring out how to come to a compromise. Sasuke made his life more difficult because he chose to fight his friends in search of vengeance, when he should have searched for leadership within the leaf. Obito gave up being Hokage because he followed Madara.

Characters like Tobirama and Danzo going unchecked combined with violent responses from the Uchiha clan members led to this. Admittedly, Will of Fire leaders were prone to inaction, however, they never intended for the Uchiha clan to be wiped out.

Hashirama would have focused on a long term plan with Madara, had Madara not decided to leave and lead a life of violence. Madara abandoned his people who needed him and allowed Tobirama to politically move uncontested.

There are faults at both sides, but the violent responses were not justified nor in the best interest of the Uchiha Clan.

Like the poster above me said, virtually all of your post is biased, but I personally found this part the most hilarious part that I felt I should debunk.

First of all, Sasuke was a victim of the curse of hatred due to people like Danzo. This is not Sasukes fault and nor will it ever be, he was manipulated since he was 7-8 years old, so what can anyone expect from someone who has been manipulated his entire life until finally making his own decision to seek out answers, and that is why things are the way they are in the manga currently.

Secondly, the senju were more at fault than the Uchiha, Hashirama admitted that Itachi was a better shinobi than him, enough said. Itachi endured far more and for far longer than Hashirama and never turned out like you are suggesting the Uchihas are, so stop posting bs.

 

[Sir Derp Troll]

This will definitely happen, very nice theory there are no flaws in it. I also saw a head come out of the gourd and it looked like Hamura..

 

[GhostProject]

Like the poster above me said, virtually all of your post is biased, but I personally found this part the most hilarious part that I felt I should debunk.

First of all, Sasuke was a victim of the curse of hatred due to people like Danzo. This is not Sasukes fault and nor will it ever be, he was manipulated since he was 7-8 years old, so what can anyone expect from someone who has been manipulated his entire life until finally making his own decision to seek out answers, and that is why things are the way they are in the manga currently.

Secondly, the senju were more at fault than the Uchiha, Hashirama admitted that Itachi was a better shinobi than him, enough said. Itachi endured far more and for far longer than Hashirama and never turned out like you are suggesting the Uchihas are, so stop posting bs.

Virtually all of your post is biased. You're debunking nothing. I respect that you have opinions, but I will say my case whenever someone calls my view bullshit, which is what the previous poster opened up his argument with. Hashirama is selfless and admires others more than himself and is humble. He may say Itachi was more noble than him but I would disagree, which is in character of Hashi.

I didn't say that all Uchiha are crazy or turn out a certain way, I just said that a majority of their potential leaders basically abandoned the clan.

Tobirama made quite a few very manipulative policies with malicious intent, however, Madara became a greater evil attempting to "stop" it and even then his actions were in the clan's worst interest, he should've led his people. Instead Madara became Tobirama's political poster-child to justify his radical policies.

And Sasuke may have been a victim of all this, but everyone is accountable for their choices and actions, like Madara and Obito as well. Playing the victim card doesn't work for justifying any of these people given all of their actions. Sasuke, as I have been saying though, has the most forgivable offenses of any of the main Uchiha with the Curse of Hatred.

Hashirama was a true leader with strong moral character. Tobirama is the Senju you all seem to have a problem with, but regardless Madara and Obito both abandoned their clan when they could have led their people. Madara became a greater evil than he intended to stop even. Sasuke could have been a leader and sought justice against Itachi that way. Blaming Senju for Uchiha character's unethical actions are just that. Blaming. It was in Madara's court for strong leadership, and he bailed. Meanwhile, Hashirama never lost his way.

Anyways I'm out. Later

 

[zamki]

It was such a nice read , I would actually like to see things progressing that way . Didnt get bored at all while reading all of it .

 

[Flaming Amaterasu]

Virtually all of your post is biased. You're debunking nothing. I respect that you have opinions, but I will say my case whenever someone calls my view bullshit, which is what the previous poster opened up his argument with. Hashirama is selfless and admires others more than himself and is humble. He may say Itachi was more noble than him but I would disagree, which is in character of Hashi.

I didn't say that all Uchiha are crazy or turn out a certain way, I just said that a majority of their potential leaders basically abandoned the clan.

Tobirama made quite a few very manipulative policies with malicious intent, however, Madara became a greater evil attempting to "stop" it and even then his actions were in the clan's worst interest, he should've led his people. Instead Madara became Tobirama's political poster-child to justify his radical policies.

And Sasuke may have been a victim of all this, but everyone is accountable for their choices and actions, like Madara and Obito as well. Playing the victim card doesn't work for justifying any of these people given all of their actions. Sasuke, as I have been saying though, has the most forgivable offenses of any of the main Uchiha with the Curse of Hatred.

Hashirama was a true leader with strong moral character. Tobirama is the Senju you all seem to have a problem with, but regardless Madara and Obito both abandoned their clan when they could have led their people. Madara became a greater evil than he intended to stop even. Sasuke could have been a leader and sought justice against Itachi that way. Blaming Senju for Uchiha character's unethical actions are just that. Blaming. It was in Madara's court for strong leadership, and he bailed. Meanwhile, Hashirama never lost his way.

Anyways I'm out. Later

Again, stop posting bs. Get out and stay out, you're not needed here exactly to tell anyone about Uchiha or Senju.

 

[CrowNoJutsu]

I haven't read a theory this good in a while. Absolutely mindblowing and I enjoyed reading it a lot!

I just had a thought. Sasuke's conversation with the sage hasn't been shown. What if Sasuke agrees with the sage's REAL ideals and plan, and Sasuke decided to help him. That could result in a final showdown between Naruto and Sasuke.

 

[Vega]

Don't do this to me...This theory was perfect, maybe the greatest I have read. But I can't really believe Hagoromo is the key to evil. What you said though can never be disapproved. Vega you are the greatest theorist in NB.

That means a lot coming from you
I just hope Kishi doesn't screw this up, as this would be a masterpiece.

Really impressive theory.​

Thanks

Would be really Interesting if that happens great theory Vega. Would be kinda similar to what i'm be reading in Batman Eternal, Kaguya would be the known lesser evil, while Hagoromo would be the true evil pulling the heroes strings.

Thanks
I hadn't considered Batman Eternal, but that's actually a very good comparison you made.

Spoiler

Amazing work, as always.

Everything you said is highly plausible. I, too, thought that something was a little off with Hagoromo. What you've theorized isn't too farfetched, at all.

In fact, there's something that's been bugging me a little, and it will probably add some plausibility to this theory. There's plenty to suggest that Kaguya wasn't the FV, or that something big is about to go down.

In the last chapter, there's a bizarre panel of Sasuke. He has a sad expression on his face. I doubt that it's just a drawing mistake or a coincidence. Now that you notice it, doesn't the panel give off a vibe that Sasuke knows something that the rest don't?

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And, going in accordance with this, we still don't know what Hagoromo said to Sasuke in their talk. What if he told Sasuke (for example) that he was going to bring peace to the world, and make him Hokage, if he could kill Naruto and the other's that would be against him ruling over everything?

Spoiler

Or maybe I'm just crazy

Thanks
You brought up an excellent point, I hadn't looked Sasuke's facial expressions but I like what you said. Perhaps Hagoromo and Sasuke made a plan then. SDO mentioned a very good point with the Prophecies from the Toad Sage. Hagoromo mentioned that in the past he paid too much attention to Ashura and not enough to Indra, so there's already that going for in favor to Sasuke from Hagoromo. Then perhaps Sasuke's "answer" was that he'd do anything to change the Shinobi System, even if it meant erasing the system of Ashura by facing Naruto. Somewhat goes back to what Itachi asked Naruto, would he be willing to face Sasuke for the greater good. My dream is still to see Oro. take over Madara's body, Hagoromo turn evil, and then both of them ally with Sasuke. Now that would be epic lol. I imagine Naruto doing a cliche Spirit Bomb as well.

A very nice read. Im starting to believe that Hag is indeed the final villain. I mean think about it, Kaguya has already been sealed so theres no more use for those ninja tools, and Kaguya's defeat was too damn simple and easy.

It really is hard to believe that Hagoromo is evil, he seems like a good guy but i can't deny the fact that i've had a weird feeling about him ever since he showed up.

Thanks
My thoughts exactly, there's too many things that still need to be addressed which makes me feel a twist is coming as well. And yeah, I didn't really believe he could be evil but then I recalled Itachi's words, they sum it up nicely.

Shit, I read the first part and it was already getting good. Reading it some more later on when I have time.

Thanks and np, take your time

Too many damn final bosses, but I do agree with the sage being evil.

lol indeed.

Lol, I don't understand where everyone is getting this evil persona for hagoromo from all of a sudden, then again we all have opinions, and I for one think hagoromo is not the final villain, if he was he's weaker then kaguya so Naruto and sasuke still stomp..

Something about him is very off, I think many people feel that. Naruto/Sasuke won't stomp, they were using his powers to fight Kaguya lol.

agree, i don't buy that Hagoromo is a good guy >.>

also +rep TC it was a really interesting read

Thanks for reading

Spoiler

This makes me wonder if the story of Indra and Ashura is even true. It was told to Naruto and it gave Ashura, who he is a transmigrant of, a significant positive slant. Hagoromo played the whole underdog who no one believed in but had lots of friends and became their hero schtick up for him because Naruto loves, loves stories like that. It plays on his heartstrings because it resembles his life.

Quite frankly, Naruto seems a little gullible.

And if that's a sham, who's to say Hagoromo even introduced himself as Hagoromo to Sasuke? or spoke about mostly Indra to him? For all we know Sasuke could have been regaled by the wonderful tale of Hamura, who gave his life for his brother. Kishimoto has pulled worse on us before and it seems like a lot of Eastern, or people familiar with Buddhism, can call out cultural markers that make Hago pretty suspect.

I think Hago's end goal is the fruit personally.

Interesting points you made. I'm dying to know what he spoke to Sasuke about, and if Hagoromo is after the fruit then that too would make sense as to why he needed the God Tree to come back. BZ stated he only slightly altered the tablet, so that means Hagoromo did write majority of its contents yet failed to elaborate on his Brother both in the tablet and the story to Naruto? Something is not right with him.

Spoiler

I think what it comes down to is that Kaguya was right, if I'm reading her motivations correctly. Whatever wars had come before the Shinju fruit was eaten, they were human and human alone. Humans were not meant to have the ability to use chakra. I think nothing illustrates this better than the Uchiha, who if Tobirama is to be believed, have a neurological disorder in which traumatic events and remembrance flood them with anger. Anger of course, floods the brain with chemicals that cause cause risky/reckless behavior and also seems to change the chemicals that make up love into making the brain feel anger. This is passed down genetically. Imagine if we focused on other clans to see if they some similar genetic predispositions towards neuroatypical behavior in a world with child soldiers and massive killing seems to be the norm. I'm sure we'd find similar problems in the other Ootsutsuki descendents.

What we have is a world where the moral compass is far different from our own, with people who would be deemed unfit for service serving in very powerful positions or able to acquire extreme power. Imagine a real sociopath - which I honestly feel Danzo might be - in a powerful position in the Narutoverse.


TL;DR Kaguya was right and Hagoromo/Hamura should have never procreated or spread ninshu because crazy seems to go hand in hand with chakra because the power is stolen.

I think it's possible that Hagoromo realized Humanity must be controlled after the failed attempt of Ninshuu.

This will definitely happen, very nice theory there are no flaws in it. I also saw a head come out of the gourd and it looked like Hamura..

Thanks , and where did you see that lol?

It was such a nice read , I would actually like to see things progressing that way . Didnt get bored at all while reading all of it .

Glad you liked it

I haven't read a theory this good in a while. Absolutely mindblowing and I enjoyed reading it a lot!

I just had a thought. Sasuke's conversation with the sage hasn't been shown. What if Sasuke agrees with the sage's REAL ideals and plan, and Sasuke decided to help him. That could result in a final showdown between Naruto and Sasuke.

Thanks man
My thoughts exactly, Sasuke's true goal is still not revealed by Kishi hinted at its hostility between him and Naruto as well.

 

[Draxus]

One question... If Hagoromo wanted to erase Hamura existence from history and go down as the only savior of the world... why would he tell Narto and Sasuke about him?

just re-posting this question because I think it was missed, plus I feel it reaches to the heart of all these evil Rikudo theories.

 

[Xāvî1]

Interesting.

 

[Vega]

"One question... If Hagoromo wanted to erase Hamura existence from history and go down as the only savior of the world... why would he tell Narto and Sasuke about him?"
^^just re-posting this question because I think it was missed, plus I feel it reaches to the heart of all these evil Rikudo theories.

I missed this one, I apologize for that lol.
For your question:
Because when he was trying to erase him from history in the past, it was to gain the support of the people of that time and become the Over-Ruler for being the lone Juubi slayer (as you mentioned). But he only told Naruto and Sasuke (presuming he told them the same stuff) such little about him that it's not enough info for them to draw any conclusions from it. And Hagoromo probably also told them as he anticipated that Kaguya or BZ would also mention Hamura (which they did numerous times). Hearing it from them [Kaguya, BZ] instead of Hagoromo would lead to suspicion cast upon him for keeping secrets and could very well expose him. It's also possible Sasuke is in on some plan with him as well.