I suppose this is the difference between an optimist and a pessimist. No matter how much better the tool gets, I don't see people getting better, and so I don't see the addition of LLM chatbots as ever improving things on the whole.
Yes, expert users get expert results. There's a reason why I use a chainsaw to buck logs instead of a hand saw, and it's also much the same reason that my wife won't touch it.