I find it interesting that he's even reacting this way. From what I gather:
1) He didn't pay for the Wii U + other things, his fans did
2) His fans wouldn't mind him covering Nintendo stuff
3) He was aware prior to all of this of Nintendos policies and what would happen and the likelihood of it happening if he put out a Nintendo video.
Put simply, what this shows is that
1) He did it because he's either stupid and forgot all of that, or thought he could get away with it as some sort of special exception
2) This isn't about Nintendos policies, it's about him not being able to make money the same way Nintendo wants to make their money, he is no different than them.
He comes off as entitled and shallow simply because it shows he is doing it for the money and would stop immediately because of that despite fans having wanted it even as far as someone/or some few donating it to him.
For him to call it quits is an injustice to the fans and more specially those who helped him get the Wii U. He isn't doing favors for anybody, he games and makes a living of it.
Unfortunately he can't separate those two, i'm sure he may enjoy it here and there, but something so simple can make him not do something anymore...and I suppose I can respect his choice. Make no mistake, as far as i'm concerned, Nintendo is backwards and does live in their own bubble....but they will always be more entitled to their stuff than he and other reviewers/LPers/etc will be.
Businesses won't let the baby have their bottle if it doesn't make sense to them. For Nintendo, the pressure may be warranted, but we gotta let Nintendo do what they want, catch up/don't catch up. It's their call, they decide their fate at the end of the day.
This on top of the Mario 64 HD really gives Nintendo a bad image. It's a bit of a biased and unfair fight to be honest.