You just named ONE of such alleged season w/o any drama. And there was drama in that one. I saw them all. What do you think a Reality Show is? TUF was one of the main things that saved the UFC from going completely under, if not the most significant. It's working for them and they're not going to change it for you and your Purist complaining friends.
There's like a UFC event every 2 weeks full of fights. If there's none, oh look...Bellator, that's up to #179 now. Why watch TUF for when you know it's going to be 50% about DRAMA. What do you think is happening when the fighters talk about their lives and how their mother was a crack-head, their sister getting shot to death, etc. That's drama and a major component of a reality show.