There seems to be a Lisp .. handedness?
Certain people seem to find it mentally appealing. I would liken it to one of the really niche music genres. Only a small number of people like it, but they do so very intensely. The Stockhausen of programming.
That's basically all it is. A fandom. A remarkably enduring one, but not one which has ever broken out, and therefore is unlikely to ever do so. Now in an even worse position: if you are armed with an LLM and therefore uninterested in the code itself, why on earth would you direct it to write in Lisp?