I'm an MMA fan and I'm not concerned about this affecting UFC's integrity. Their matchmaking is already often based off of what will be marketable. It's an accepted part of the business, and they know they need to balance it with high level competition.

I think this move really makes sense for the career paths of UFC fighters. Right now, you can have a very marketable fighter fall in the rankings, and suddenly lose a ton of value. MMA fighters also tend to decline really quickly with age. So a transition to something else like Pro Wrestling can be a good path to maintaining a really lucrative career, as we've seen with a bunch of fighters like Ronda Rousey, Brock Lesnar, and Ken Shamrock.