I saw Indie Game The Movie a week ago and the Fez dev is a big part of it. There's some people you just don't like their face you know? They tried to put him into a favorable light, but you could tell it would be a total nightmare to work with him. And from the Twitter quote, it seems that all the issues that he has in the movie were probably caused by himself.
I could be completely wrong, but the Twitter quote alone makes him a total troll.