I think it could work in a hypothetical edit in which Kylo reveals during the hangar scene that Palpatine never wanted him to kill her. Or that they are simply meant to fight each other, and he doesn’t want Rey dead necessarily, just one of them. This is what I’m doing in Nev’s brainstorming thread, currently.
Because we currently have the scene before Endor, the only purpose it serves is reminding us that Palps wants Rey dead and that Kylo knows where she’s going. Arguably, having no such indication that he knows where she’s going would make his sudden appearance on the Death Star better. I like how the novelization describes how Rey is convinced at first that he’s a part of the vision she was just experiencing because it makes no sense for him to be there.
I’d be down to tool around with the scene and use my own voice clones (I’m biased to think they’re better than this reddit user’s at the moment). Of course credit for the original idea should go to them, though.
EDIT: This would also allow Luke to say something to Ben when he finds Rey’s dead body because we’d have precedence for him speaking into his head. Basically whatever we want him to say there to match when Ben twists his head and looks around the shattered throne room for some reason. This whole idea would discredit Palpatine’s statement that he’s been every voice in his head, which I’d say is a good thing so it’s clear Kylo was never being mind controlled.