But a word of praise now and then can spur a writer to do great things for you. If you like the copy, call and say so. Better still, write a note. Even when you want a rewrite, start off with praise for what you liked about the copy. You may start by thinking otherwise, but you will change your mind.
Most clients are a delight to work with.
If he wanted to feel superior to the writer, he probably succeeded. He also succeeded in alienating the writer, resulting in a quick patch-job on the copy and no rush to hand it in. Let me tell you what I have in mind. The writer should do his best to satisfy such a request. If the original copy was indeed incompetent, the client should seek another agency, not bully the writer.