IMO I think it's dumb to be angry about Fish because his dislike of modern Japanese games. Inafune also thinks the same thing, too. It's an opinion.
I think my problem with him was with the way he talked with the person who asked the question.
To cite an Dtroid comment which I agree with:
@Thane Vickers
Yes, no doubt about this generation having fewer great Japanese games than the previous one. In that regard Fish's comment wasn't entirely untrue, but it's like saying to an overweight friend "Dude, you've become a f fatass!" instead of "Listen, I think you have a weight problem. I'm worried about you. Have you thought about changing your diet and exercising more?".
He did apologized to the guy on Twitter, which was very respectable.
From what I get his a pretty cool guy to hang around, but it has "these" moments. If you see him on TigSource or in Twitter you would say "He doesn't seem like someone that I would like to hang around with.".
Again, I think it's childish disliking Fish because of his opinion on modern Japanese games (which I * respectively* disagree with) and not buying the game because of it. As for the other things he have done, I don't think it's logic either, since there are *a lot* of guys with attitudes akin/worse than Fish in the game industry, they just don't reveal it publicly.
Overall, FEZ looks like a great game, and I'm going to buy it because of it. Remember there are a lot of cool guys at Polytron aside from Fish, so remember that you will be rewarding them by buying the game.
So in my opinion there are legitimate reasons to disapprove Phil's behavior, but there's a lot of stupid ones and ad hominems too. (e.g. cave story/paper mario ripoff, disliking modern Japanese games, etc.)
PS: Still, I disliked his entrance on this year's IGF. Even he confessed in a RPS article that it was a "douche" (word toned down) move doing that.