I think the other angle is a deeper question of why are you reading/viewing/listening to any particular piece?

For some content, say summer blockbusters the answer may just be that it is moderately entertaining way to spend some time. I expect AI may well be able to do reasonably well in this category, although what we find entertaining may well shift if the supply/demand curve shifts drastically enough. In other words, people may still pay to see a new action film even if it hasn't anything particularly new to say.

Then there is the more cerebral kind of art. Where there is an actual message that someone is trying to communicate to us. It's a form of argument, but not purely logical, but also aesthetical. I'm completely unconvinced that present day AI architectures will ever have something to say, purely because they lack agency, and so there isn't anyone there saying it to us.

Finally, there is the art that is entirely spiritual or internal. The whole point of that kind is the author baring their soul to us. Why on earth would anyone want a soulless machine barring their non-existent soul?