1. i like how OP denigrates the Uchiha who didn't go along with the Senju program as being evil, and in the same breath romanticizes the ones who were going to sell them out by brainwashing them or massacre
2. BZ edited that tablet so they would begin trying to climb the dojutsu ladder. That's why he spoke of them in them in that way.
3. There wasn't a single thing that said he was behind the coup as Madara was the main focus of that part of his dialogue. Obito was the only other being Itachi was in contact with other than Konoha's brass until such info is confirmed.