I could be wrong, but I think the use case here is mainly for non-artists in domains where the music is not particularly important.
For example, a podcaster/youtuber may want a short intro track. An entertainer or a marketer may want some generic or silly background music.
Does it have a use case for a producer/musician? Maybe. It might give them ideas for chord progressions, melodies, etc. But real music does that too, and much more effectively.
It definitely has a use case for prototyping sound design, which can be either incredibly time consuming or require an awful lot of niche expensive gear. Something like playing around to get an unusual drone can take a lot of time and effort. Being able to 'describe it' and get 80%+ there is a huge win.
And if you're focused on chopping up samples and sounds on an ableton push or similar this can be a tool of endless possibilities.
Polemics about generative AI might indeed benefit from separately addressing art and entertainment. Generative AI in art is worth debating, but entertainment is not even a question: entertainment is a proven market for mass-produced slop, where artless works just fine and art is marginally valued.
For example, a podcaster/youtuber may want a short intro track. An entertainer or a marketer may want some generic or silly background music.
Does it have a use case for a producer/musician? Maybe. It might give them ideas for chord progressions, melodies, etc. But real music does that too, and much more effectively.