There's no rhyme nor reason for Dana's stupid decisions.
I've seen many guys get 2-3 straight losses (Sonnen) and other guys that dabble in stacked divisions (Mir) with consecutive losses and mediocre records and they are kept around.
my honest opinion is thag Dana literally does whatever the fuck he feels like. He keeps who he likes and he axes who he doesn't, because dammit, the UFC is his and he can do whatever the fuck he wants with it, so there! Harrrummmph!
Seriously I see a huge man-child complex with that guy