Not the guy you asked, but honestly, I'm not sure which one of those I'd consider better use cases, not worse.

I ask because I think there's a huge difference between the two.

People making end-user applications might think they can tolerate more errors and bloat from AI.

Just because they can get away with doing that with AI (and that's debatable) does not mean that people can also get away with that in developing tools, libraries, languages etc. The errors, bloat and instability bubbles up exponentially as people build on it.

There seems to be this fallacy of "I don't have to write code anymore, therefore nobody will have to write code anymore."