I don't think so.
He claims they threatened to cut him.
She slapped him. He responded by pushing them and he turned to leave and they jumped the counter.
During the video you can hear him shouting for them to stay down *something he probably learned from the COs in prison* that's why he kept hitting them. Some one threatened to cut you and then actually cornered and chased you and still attempted to get at you while you beat them. Doesn't sound excessive to me.