I heard they are letting Cruz stay on the show, but I don't quite understand that decision. They made Tito leave the show when he had to pull out of his fight with Chuck. Maybe they are letting it slide with Cruz because he's a champion and he will still fight the winner of the Interim title fight.
I think the difference is that Tito was having back surgery & would have been immobile for a while. While Cruz can still move around in a wheel chair or on crutches.