What Phil Fish said was dickish and he reacted poorly, but I write it off just as I do when Jeff tells people to "Fuck off idiot" on ForumSpring. Neither are completely unjustified in what they have said in a public forum, even if staying silent would have been more mature. Doesn't spoil my enjoyment of the things they create.
Edit: But to the OP's original point. I dunno about Fish. Dude just disappeared after Fez released. Maybe he's working on more puzzles and fake alphabets.