Yea chapter was good. But I still cannot get over the Madara's stupid interpretation. Itachi seems to be the sanest of all of them or at least the least crazy one.
About Black jetsu, he came out too suddenly from the ground right at Obito and can easily becomes part of Obito. Half his strength rest on that skill. Minato and kakashi fast as they maybe , have to see him first and have to guess what he is about to do. I don't think there was that much time gap.
Talking about Madara's interpretation, my mind always relates it with Yin-Yang philosophy i.e. one thing can't become complete without another. Itachi was a unique character as compared to Madara because he had that will of fire within him.
Black zetsu thing probably surprised Minato and Kakashi, that is the best explanation I can come up with, because I was at least expecting Minato to show some expressions or at least call medical shinobi, try to heal him. Obito is his student after all, but neither he nor Kakashi tried to react on the situation.
This is becoming interesting. Kabuto gets a call, and he was the partner of one of Madara's actual 'men' (Kabuto and Orochimaru working with him).
If that is the case, then there are some things we can potentially glean from this if I'm not mistaken.
1.) Orochimaru may be currently working for Madara, seeing as earlier on, Kabuto wasn't 'sure that Tobi/Obito would act as planned'.
2.) It seems that the Eye of the Moon was a way to rope Obito into the plan as opposed to the end goal- why would Orochimaru agree to it otherwise?
3.) Is it possible that Hashirama was resurrected in this way to give Madara his power?
4.) Though if Obito was always intended for resurrecting Madara (Black Zetsu controlling him) then why was Nagato needed? (NVM, Obito needed to manipulate and pull the strings in preparation for Madara's return- something he didn't do- and he was a bit surprised when Kabuto pulled him out of nowhere. This constituted a setback for sure, but it all fell apart, I would guess).
Just some thoughts.
Actually I was thinking in the same direction when I came up with theory which is there in my sig. What if Oro is working for Madara, but few thing go against it.
1)Nagato point that you explained there.
2)How Oro came across alive Madara? We know that Konoha always thought Madara died in Hashirama battle. When Oro joined Akatsuki tobi was Madara, and real Madara was dead.
And before that I doubt if Oro ever came across that underground place of Madara.
3)Talking about Madara's body I think Oro soon came across the fact that Obito isn't Madara after joining akatsuki and he soon got access to Madara's body.
4)If resurrecting Hashirama was part of Madara's plan why Oro resurrected remaining hokages??
He could have just resurrected Hashirama. It is easier to control one hokage rather than four hokages.
But still that is some different thought.