Yata has been shown repelling explosive tags, Sasuke's sword, and Orochimaru's Hydra, so going by feats it repels more than just elemental chakra attacks, so if it was enough to protect Itachi from the blast then it should have repelled it, but it didn't.
Did it repel or blocked it? Cuz repelling and blocking is 2 things different. From the way i read it, all i saw is a defense blocking explosive tags or a sword that like almost any type of defense in this manga can(Neji's kaiten defensive feats in part1 for example were already greater than this)?
Yata has also been shown to
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itself to block the attack, so there is no way Yata wouldn't have protected from Kirin if it were used.
Hmm never noticed this, but like i've said, we still don't know to which extent yata can protect
For example if it covers the entire area as efficiently when it expands as when it doesn't, Itachi wouldn't have needed to move his shield to counter Orochimaru's hydra technique [
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I personally believe he used the final one since i don't think Itachi would use lesser stages against an attack he wasn't even sure to survive against
Now we should address the actual damage that Itachi's Susanoo withstood. Let us keep in mind that Kirin possesses a town level wide AoE (Area of Effect).
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While there are many attacks that do large amounts of damage to a specific amount of terrain, we must remember that alot of these "building buster, or town-buster" ranked attacks are more-so based on the area of effect in some cases. What i mean is that 2 techniques can be "mountain busters" in terms of AOE without being as strong as the other
It can simply mean that the attack is just strong enough to destroy the weaker materials that consist of that area, but due to it's wide AoE, it can destroy an entire town. Hell, in this case(Sasuke vs Itachi), the Katon Gouryuka no Jutsu that Sasuke used to set up Kirin were powerful enough to obliterate the stone that it came into contact with. However, it had very low AoE. Now if that same fire jutsu had the range to cover the same area as Kirin it would be called a "Town Buster". This is because the jutsu has enough power to destroy the weaker materials within the AoE.
Considering the fact that the hill on where the Uchiha Hideout was located, the majority of the Hideout's interior was hollow, filled with walls, rooms and halls. Meaning the entire structure was not filled with solid minerals like an actual hill or small mountain. As we also see, the entire area was not obliterated by Kirin. As you see in the aftermath, there is a copious amount of rubble and debris. This likely indicates that Kirin immediately made the structure of the hideout unstable. It's structural integrity was compromised by the attack, not completely obliterated. Same thing can happen with any building. Hell a well placed Katon ninjutsu could bring down an entire building, if the foundation of the building is destroyed. That being said, I believe the raw power of Kirin (at least what is dealt on the target) has been greatly exaggerated.
Besides this, there is still the issue of the power's focus. In Kirin's case, it's energy is spread over quite a substantial diameter. Because of this, the absolute totality of Kirin's power is not completely focused on the individual target. All the target needs to do is survive the energy that comes in direct contact with their body. If Itachi had Susanoo up, that would have soaked up the minimal (minimal compared to the entirety of the jutsu) amount of energy that hit Susanoo directly.
If we follow the idea that Itachi was only able to summon the Incomplete Susanoo, we have to remember that what it withstood was only a portion of the jutsu's full power. Keep in mind that the amount of time that elapsed once Kirin's lightning struck was 1/1000th of a second. This means that regardless of what defensive measures Itachi used, he only needed to defend himself for 1/1000th of a second. Also, the defense itself did not even need to last. Even if the Susanoo shattered instantaneously (which it likely did), it did the job of soaking up the brunt of the minimal energy that hit it directly.
As we plainly saw, Itachi was not unscathed by any means. While it is true that he had no limbs blown off of him, we clearly see that it still knocked him out for a few moments and damaged him considerably to the point that he could barely stand back up. This means Susanoo didn't "tank" anything. At most, it probably just shattered the moment Kirin made contact with it, and the residual force of the attack damaged him. Remember, Susanoo only needed to guard him for less than a split-second. Not exactly a long lasting defense. This is very different than constantly withstanding barrages of attacks from the Kage.
Ultimately, surviving Kirin does not mean Itachi can by default survive attacks that are comparatively lesser than this jutsu. Itachi cannot react to actual lightning, and his Susanoo cannot "tank" a Town Buster. And if it can, the defense can apparently only last for 1/1000th of a second before it shatters lol.
All this to say that a Susanoo(complete or incomplete one) "tanking" Kirin doesn't mean it could tank FRS which power is more focused and even if it could the entire thing would be obbliterated. Complete Susanoo is rated to be 7meters at most by calculations. FRS explosion has a much greater AOE
