The real value AI has for music is discovery. I've been using Gemini and ChatGPT to build playlists based on music I already like, and discovering lots of fun new tracks. I can be really specific about what kind of music I like and don't like. I can show it a playlist I already made, and ask it to make one like it, but with completely different artists. It's insanely useful!
But these kinds of tools would just expand how many different artists Spotify has to pay from my streaming, and that doesn't do the same thing as shoving cheap mass-produced slop down our throats, so it isn't surprising what they offer us.