I think the point deductions were warranted. But in full disclosure, I still think Khan won the fight with the deductions. It was a close one...
Right in that short footage there's Peterson pushing Khan worse than Khan ever did. But this was perfectly fine for that crooked referee. And not to mention that pushing is one of the smallest infractions in boxing, and almost a given when your opponent leans of you with an high guard. Two points deducted, not one! Disgusting referee. Khan was robbed that night.