Any time you let your opponent back to the table you're taking a chance. At the pro level it's probably a bad idea if it can be avoided. That he missed an easy shot is the problem here.
My crackpot theory is that he doesn't think, or worry too much about shots, leaving it to his subconscious to get it right. Being too deliberate can ruin the process of shot making.
I think Shane should post a very public statement on what changes he'd like to see to the format of the MC, the implication that he might not be interested otherwise. The people from matchroom NEED him there! They'd probably just offer him money instead of making changes that they don't want...