How do you know his arm was going to snap? It's very possible he could've slammed Amir again.
If this was anyone but CB I think people would be acting differently and tat's something that bothers me. CB didn't do a real tap one tap and then moving your arm to defend yourself shouldn't be enough to stop the fight.
You are always defending CB, and said that he would probably be a contender in the MW division, I think we can question if you are unbiased about this.