I think there's much bigger of a difference in early pushing a wrestling champion who is a physically talented freak vs. some dude who fought in backyards and was put on Youtube.
I agree Brock was pushed too soon, but Kimbo is just all hype, and Brock can at least back it up...
I look forward to seeing Kimbo on TUF though, I think he's got the right mindset and EliteXC just screwed him over.