Even if thats the case, which it seems to be. The fault is still on Kishi, at the end of the day he's the one holding the gun, SP may have persuaded him to pull the trigger but in the end he was the one with the choice on whether or not to fire
Maybe maybe not. Truth is we don't really know Kishi's contract with Shuiesha (I think that's the company he works for, please correct me if I'm wrong) or SP. He may not have full control over what's happening. Now don't think I'm trying to defend him, I'm just trying to make sense of this.
And the only explanation that I have is that he was forced to do this and now he's doing whatever it takes to make sure people won't follow the continuation. It's the only logical explanation that I can come up right now that justifies him coming out and saying that all of us are idiots. He's just pissing everyone off. Everyone doesn't matter who you are.

Which I've told you - time and time again - is dangerous! There will never be consensus, son, among those you have helped to ascend. They will all differ in their views of what it means to be free. The peace you so desperately seek does not exist.
These men are united now by a common cause. But when this battle is finished they will fall to fighting amongst themselves about how best to ensure control. In time it will lead to war. You will see.