Specific commands don't really showcase the appeal of jj. If anything they might scare someone at first glance. It's the fact that the workflows are intuitive and you never find yourself reaching for help to get something done. You really need to try it to understand it.
jj is better for some workflows, which, if you're a git expert as you claim, you conciously or subconciously avoid as 'too much work' or 'too brittle'.
if you don't care about them after accepting this realization... it's fine. git is good enough.
I’m not a fit expert by any means. The workflows being described do not appeal to me but not because of the way fit works. They sound confusing and I don’t understand what benefit I’m getting out of them. Like, it’s a solution to a problem I’m not sure exists (for me)