There’s already a tiny bit of Ron the Death Eater happening to Finn when TLJ tries to argue his caring for Rey is wrong somehow (which was some obvious bullshit), but going full bore would have been worse.
...But weirdly enough, I’ve also heard some people suggest that what they would have loved was Kylo getting redeemed early in TLJ and Rey going dark, so even she clearly experiences some pro-Kylo bullshit as well; she was kind of lucky Abrams was willing to try and push her again in TROS. I’ve heard all the arguments she’s an overpowered Mary Sue... but Kylo’s conducting necromancy and the entire story bends over backwards to pretend he’s sympathetic like a Blackhole Sue, but people don’t rush to call that out because of either sexism or acknowledging that ultimately a significant number of TLJ and TROS fans are embracing their more trashy tastes regarding him.
...Eh... I don’t think it actually says or shows anything new about the Force as much as it suggests we should explore that idea later - before promptly dipping into pity parties that are the worst characterization mistakes in the movies (I’m thinking primarily about the young characters, for the record, though I think Luke should be counted as well) and a “reconstruction” phase that ultimately makes the earlier suggestions more of a headfake. There’s no actual lore work or challenges to the framework we have for the Force from earlier, and we even have Luke’s entire anti-Jedi sentiment being exposed as an intellectually lazy excuse that the film even partially blames on him not reading any of the damn books he emphasizes.
Part of TLJ’s problem is that it’s an exceptionally shallow movie for the story it’s trying to tell - it says the Jedi should be criticized, but has no details, for instance, and is also sidestepping whatever different teaching techniques or criticisms Luke would have for the Jedi Order.
It’s just it’s also far, far worse when it comes to its progressive and inclusive themes and its treatment of the women and POCs. It wouldn’t be nearly as bad if it weren’t following up on TFA, mind you, but it’s still bad to go from a film that had a female main character and a black male lead to one where it’s really two white dudes in the lead with the former main character as a prop to their story and pretty much every POC in a clearly token role as the supporting cast - heck, you could even argue Holdo ends up making every POC a minor character in the war story.