He is out for his own interests like any promoter, I'm sure he is making smart moves. Quillin would have had little to no choice in that matter, it was Haymon throwing a wrench in the whole thing.
You'd have to look at the ratings for some of these cards to get your answer I guess, but I suspect they have done alright. Haymons fighters are getting paid well for one thing, and for borderline mismatches at that. It's a minority of viewers who actually realize the cards suck, I think.