I think part of the announcing was damage control for the last UFC. I do believe Rogan is lightly scripted, I also believe White's statement that he had seen 'worse' judging than Hammil/Bisping was a damage control statement. But then again I can't blame them for those statements.
I think announcing in the UFC is modeled after WWE to some extent as far as putting the fighter over and protecting the organization. Unlike the WWE, Rogan seems to be overall good, sometimes great, and sometimes just a babbling airhead who makes no points, and calls one of the most known MMA fighters in the world 'Ninja' instead of Shogun.
At this point I do not think the UFC wants to be seen as fixing things, because that would kill the sport. I mean today Rua/Henderson and Lidell/Silva are either done, or at least look a lot worse.