I don't question Bach's genius, but most baroque music doesn't interest me. Some of Bach's music I still enjoy enough that I could see myself listen to AI generated tracks made to generate music specifically similar to those pieces of Bach (and others) that I like. Though not enough that I'd seek out that in particular, and so I think the combination of what you say, with the general low-level of interest of those who would if it just happened to appear in my playlist still explains why it's not really a thing.

There are many artists, across the spectrum, like that for me, from geniuses that are just outside my own taste, to mediocre "one hit wonders" where I realise why they only had one hit when I listened to the rest of their catalogue but reallly would like more like that one hit (or handful)

And even when you like a broader selection of a composers music, there are time you might want "more of the same" of a specific piece. E.g. I quite like Beethoven, but I love the Moonlight Sonata, not just for what it is in itself, but the general systematic exploration of repetitive and slowly shifting of it.

There are other pieces by wildly different composers that invokes similar systematic exploration of patterns [1], but I'd also love to be able to hear more new "improvisations" over specific instances tuned very specifically to the aspects I like.

[1] On the extreme other "end" of these types of shiting repetitive patterns, I love Rob Hubbards Delta in-game theme of 11+ minutes of patterns repeated and iterated over as an illustration of the wide range that I like for much the same reason: https://www.youtube.com/watch?v=jOpIbm_XX-k

You can also find a slightly less shrill modern remake, though it also adds a bit too much for my taste: https://www.youtube.com/watch?v=-WE6av3g_8I&list=RD-WE6av3g_...

Or a somewhat more faithful arrangement: https://www.youtube.com/watch?v=AHpYBGW41gw&list=RDAHpYBGW41...