The benefit of AI generated music is that you can make it for yourself. The goal shouldn't be to get other people to listen to it. It's very personal and that should be the end goal.
Is it very personal if it was generated from a third party? Making music and, more importantly, playing it is an incredibly personal, physical experience. Especially if you're doing it for yourself rather than being a gun-for-hire session musician.
Getting it from a service like this is the equivalent of buying an already assembled lego kit. Putting aside ethical concerns (we're talking about the music industry after all, there were none even before AI arrived) is there a viable business in it?
The benefit of real human-made music is that you can make it for yourself. The goal shouldn't be to get other people to listen to it. It's very personal and that should be the end goal.