Another thing that changed the product for me was WMMA. Mixing the men and women fights together just changed the flow and made it a different product. It's not the same for me any more and not really something I care to purchase any more. They should have separate cards for WMMA and MMA. This would benefit the ladies so they aren't being compared to the more athletic, faster, powerful male fighters.
Ask 100 MMA fans what are their Top 5 WMMA fights ever, and after Rousey getting KTFO'd twice and Joanna vs. Weilli they'll be hard pressed to name 2 others. Maybe those who are old enough will add in "Cyborg vs. Gina."
Ask 100 MMA fans what are their Top 5 male MMA fights ever, and you'll probably have 100 replies that only occasionally overlap.
Look at the UFC rankings and see if you see any evolution in WMMA. A handful of women who might actually contend for a belt some day. A tiny percentage who can throw a meaningful punch. And a huge number of "fighters" who throw air punches and hope for a split decision win after 15 tedious minutes.
They are filler. On almost every card UFC can stick in one or two chick fights, and Rogan and Anik will act like they're something not to be missed. For most fans, chick fight = time to take a crap or make a sandwich or grab a beer or make a phone call without worrying that you'll later wish you had remained glued to the TV or monitor.
Jessica Eye vs. Cynthia Calvillo: Main Event. Yeah, UFC, I'm all about that.