I like seeing what they think regardless of if I agree or not. Sometimes I like reading / watching the opinions of actors I have respected. I can't really say I agree with Burton because, well, it was really just a comment to a TMZ reporter that he made in 30 seconds in getting into his car. It's hard to even understand what he means by there needing to be more Gene in the movie, exactly.
But it didn't strike me as sour grapes either because the interviewer said something along the lines of, "They should've put you in the movie." Burton said they didn't need him.