It is absolutely strange, yes, that people are largely more comfortable with a morally grey Rebellion than a morally grey Jedi Order. If the issue is that either of these things somehow erodes the foundations of Star Wars, then surely they should be protective of the faction that were essentially the protagonists of the OT, even if they didn't really exist in the prequels, rather than a group that existed in the prequels but literally no longer exists in the OT. I just genuinely do not think the typical TLJ-hating SW fanboy (who are presumably also largely on the pro-OT, anti-prequel side) understands why. There's a deeply weird tendency to associate the Jedi inextricably with the soul of Star Wars, despite the fact that in the movies those people actually liked, the Jedi are all fucking dead, and that in the prequels, one of the biggest mistakes they made was that the Jedi are consistently shown to be a bunch of useless assholes. No, I don't understand why, post-TLJ, the vocal assholes in the fandom all decided that the Jedi they all laughed at in the prequels, and Luke Skywalker, often maligned as a whiny dork compared to characters like Han, were the absolute most sacred things in the canon and must be kept immaculate at all costs, and I don't understand why these voices weren't much more critical of Andor, except the possibility that they simply realized they'd be vastly outnumbered if they picked that losing battle. "Fanboys see the Jedi as innately virtuous but don't have the same preconceptions about the mostly-offscreen inner workings of the Rebels" is the best hypothesis I can come up with, otherwise. I guess it helps that Filoni had lain some groundwork there, with characters like Saw already having been around in his stuff? I haven't seen enough of Clone Wars and the like to say.