I‘m totally with AlexanderSchiborr..
First, I do like some of JXLs music, in Dark Tower and Mortal Engines there were some great themes. But listening to the Alita score I was quite shocked: this music could be pulled from any unnamed library music. As Mike Verta would say: only vertical development, zero thematic development. I would go further in saying almost zero themes.
When I stumbled across JXLs videos for the first time months ago I was quite impressed by how much he shares with the world - what a noble move. Then I realized, wait a minute, that is produced pretty professionally, lots of cameras and angles - that‘s called marketing and selfpromoting, the kardashian-way (one outcome is JXL-brass .. surprise). Then I saw him playing piano and I felt.. WTF, he doesnt remember his own themes?? ..
Only speculating - and maybe I‘m completely wrong: JXL is from the late 90s dance-bubble. As a music producer / DJ it was pretty common to let others compose and play your stuff. How do I know? .. first hand experience during that time. So maybe JXL is still just a very smart music producer - nothing wrong with that