I wouldn't go as far as saying he did it because it's the 'cool thing to do'. The guy has an opinion and he's most likely doped up. Give him a break.
I think the whole TUF1 built Quarry up quite a bit. Everyone, including Dana, said he was the favorite to win the whole thing. They've said nothing but nice things about him, how professional and humble, as well as a talented fighter. I think it was UFC that made the big mistake of rushing Quarry, but I do hope he rebounds. He's a solid fighter and he's got a chance just like everyone else.