The big advantage to me is it's an unexperienced junior with approximate knowledge of every API and style on the internet. It's a super junior.
Like economists, who have predicted 7 of the last 3 recessions, AI knows 17 out of 11 API calls!
And in the case it's wrong, I will know pretty quickly and can fall back to the old methods.
It's definitely been said before, but the fact that they're calling out these non-existent functions in the first place can tell library devs a lot about what new features could be there to take up the namespace.
TODO.md and FEATURE_TODO.md are also very valuable for keeping on track.