^ I think they might've also had new voice actors, but I could be mistaken about that...
Plus, their new storylines (for the fights) were oftentimes pretty stupid, and the way they animated the fights fell more on the 'gimmicky' side than on the gory, gross one that made most people watch in the beginning. Yet another old show MTV thought they could bring back to boost ratings and then ruined...

It's things like that that make me, to an extent, feel relieved by the fact that they haven't attempted to bring back music programming yet: They just always find a way to **** it up, and I'd rather not be disappointed by it.