>emulating lowest common denominator pop sludge.

So the stuff that is most popular?

But (semi) jokes aside, I think that AI music tools are just not fully developed yet. The current approach is more or less one shotting a track. Whereas I think a system that allows one to generate layers would bring in many new sounds. Something like a "speak to instument" system, where you can hum melodies and then generate instruments to play those, then compose a track with all those individual parts.