> just to bash on jj for some reason

Actually, to be blunt (you're already offended anyway): what I'm saying is that I find (personal opinion) that many evangelists here (you included) don't sell jj really well. If so many people are actual fans of jj, there must be something there. I'm just struggling to find it between the "you're probably too dumb to understand a stash so you should use jj" and the "let me explain to you this great concept that jj has which allows you to undo changes in a way that sounds like git cannot do exactly that".

So no, I'm not criticising jj :-). And I'm not convinced I need it.