I imagine Clojure is more popular with Java programmers than it is with CL programmers. I did CL for over a decade and I've certainly never had a need to pick it up:

Java programmers on the other hand always seem to be looking for a reason to not use Java. But Python programmers? Always looking for a reason to use more Python.

FWIW: A lot of people also don't love Python. I particularly hate it, but the things (I perceive) it's bad at, Hy doesn't help with.