OK I read it, I'm not interested, git does exactly what I want.

That's sort of where I've been stuck with with jj.

Maybe someone can convince me otherwise, but to me it hasn't felt sufficiently better than git to justify bothering re-learning this stuff, even if it's relatively easy.

Git wins by not needing to be replaced badly enough. Latley you can just ask an agent to "amend the last commit" so even that is being abstracted away.