I don't have the experience to refute that. But I see the same things from developers all the time swearing AI saves them hours, but that's a domain I know well and AI does certain very limited things quite well. It can spit out boilerplate stuff pretty quick and often with few enough errors that I can fix them faster than I could've written everything by hand. But it very much relies on me knowing what I'm doing and immediately recognizing the garbage for what it is.

It does make me a little bit faster at the stuff I'm already good at, at the cost of leading me down some wild rabbit holes on things I don't know so well. It's not nothing, but it's not what I would call professional-grade.