This is a pretty complex topic, as a quick knee jerk I agree AI art isn't art in the common sense, but one thing I disagree with is that all art has intent or even needs it.

I don't think AI art is going to or even tries to replace art as a creative pursuit. If anything it's more likely to replace certain photography related jobs.

Currently the main use cases are

Generating stock photos
Generating texture maps
Generating concept art

None of these things really care about intent, you could argue concept art does, but a lot of the time it's just there to set a vibe/direction/theme. All of the above will still replace jobs but not the typical everyday artists jobs, maybe stock or texture photographers though.