Well, it certainly is rude to humiliate a reader during the middle of Mass. But, it’s up to the** readers **to confer with him on what he wants, and also to tell him they would prefer he speak with them privately and not act in such a manner during Mass again. If he’d done that to me, I’d have talked to him privately and told him that he was rude and out of line.
The key here is that your pastor his human, and susceptible to the same kinds of mistakes as everyone else. At one time or another, everyone has done something irritating, stupid, rude, or annoying.
So, give him a break.
If he does something annoying or insulting to you, then speak to him privately, tell him how his words/actions made you feel, and see what he says. Otherwise, treat him with charity, don’t gossip about him with others, and tell others not to gossip either.