The domain name incident absolutely isn’t a strong enough case to justify pivoting a career.
The clients suggesting features and changes might be a reason to pivot a career, but towards programming and away from product/system development. I mean, let the client make the proposal, accept the commission at a lower rate that doesn’t include what you’d have charged to design it, and then build it. AI ought to help get through these things faster, anyway, and you’ve saved time on design by outsourcing to the client. In theory, you should have spare time for a break, a hobby, or to repeat this process with the next client that’s done the design work for you.
I agree with all the points about agency, confidence, experience (the author used “authority”). We must not let LLMs rob us of our agency and critical thinking.