Yeah I was just about to reply to your original post about this. In reality, he should have released the hold when Pearce tapped. It wasn't the sort of thing he could have denied doing as he tapped in an area where the whole arena could see it nevermind the referee who is less than 3ft away.
He kept cranking & cranking, then when the referee actually jumped onto him he gave it one more sharp crank. Highly unsportsmanlike & completely unprofessional.
I mean this is the equivalent of knocking someone out with 1 punch, then hitting them 5 or 6 times while they are unconscious on the ground, something I doubt even half the guys would do to some of their worst enemies in the UFC.