Brian Eno was 100% right about ambient music, but he was just wrong about what form it would take. Basically, his music is so unintrusive to the point of being sleep-inducing for many, thus at least a little more intensity is needed. What really became the ambient music was 24/7 lofi hiphop streams. That kind of music is still very abstracted from a human composer, it just happens to have slightly different sonic qualities and sociocultural context than Eno, so it appeals to a wider audience.
Totally agree with this, but I think it's very likely we'll see AI-written pop hits. They've basically been churned out factory style for years anyway.
And if that does happen, expect a far more exciting backlash movement, like alternative rock in the 90s was to garbage excesses of the 80s.
If you want a quick example of what I'm saying, look online for Music for Installations by Brian Eno. It's a "almost-generative-but-not-really" music album made for audiovisual installations. It's... kinda nice but it's 6 hours long and literally gets boring after less than 30 minutes.
I can't imagine listening to something even more abstracted from a human composer for more than 20 minutes. I mean, I'm pretty sure you can generate something even quite pleasant with AIs. Most people will just listen for 15 min, say "uh, cool", and go back to regular music.