After Braid, Blow (rightly or wrongly) took an immense amount of criticism for his views and opinions. Even more admirable is that he shrug all that off to come thru' with another game (unlike Phil Fish who took all his criticism rather badly).
I actually paid for Fez, apart from its little gimmick and art work, it wasn't really much. Never finished it even, and I finished Assassins Creed 1 ;-)
Blow just seems genuinely good at writing games/software and creating puzzles, but even better at finishing.
I am not saying he Stole Fez, I am saying he seems to have mistreated people who worked on it with him. In the end, Blow is a force of nature, Fish was lucky to have someone code the engine for him, period. Look through the videos on Jai, there is some good stuff there that's not related to games in general.
Edit: Sure, it's perfectly valid to extend the meaning of "steal" to include "be inspired by" or "copy", but that does nothing but devalue its original meaning.