Thing is, I don't believe in redemption. I think there's a general possibility of atonement, but not arbitrarily many such moments in which it can be grasped. Even granting the implausible case that Kylo could yet atone, there isn't any atonement for the patricide, would-be matricide, and genocide that leaves them with a name or fame. I cannot imagine any movie in the Star Wars franchise doing that, so I wind up hoping that Kylo Ren gets trisected by someone of humble origins.

It's not like they don't have to seriously rethink the whole narrative arc; let them have a rush of sense to the head and push the whole humility and deeds-as-the-basis-of-judgement thing.