That's a good way of putting it! Frankly I don't think he's done anything awful either. I didn't even care about his claims that he was going to win, I would expect the celebs to say things like that at the beginning of the season to get some press and play up the drama.
There only seems to be one cardinal rule to this show: Don't lose your sense of humor. When a celeb does that, the audience can smell blood in the water, and that celeb won't be long for the show. He's taking things too seriously, that's all.