The OSM community has had extremely clear rules around automated edits for most of its existence. Every experienced mapper has seen first-hand the sorts of problems they can cause. The fact that it's using AI in this instance does not give any sort of exception to these rules. To emphasize, there are already AI-assisted tools that are allowed,[0] this isn't a blanket application of "no AI ever," it's about doing so properly with the right community vetting.

[0] Most notably: https://wiki.openstreetmap.org/wiki/Rapid

Edit to add: To be clear, they have since taken steps to try to resolve the concerns in question, the discussion is ongoing. I suspect at the end of this we will get a useful tool, it's just off to a rocky start.

The "good reason" is that OSM is supposed to contain real data, not wobbly AI guesswork data.

Robust computer vision is not guesswork, and probably better than what the average contributor can do. The "wobbly" concerns were already addressed.

That's not an assertion I'm going to take seriously without evidence.

Preliminary evidence seems very good. The gatekeepers are already doing damage control.

Link the evidence, then. Numbers, not vibes.