It’s only a small detail but the first time Rey uses the light saber in TFA she makes stabbing strikes from the shoulder, exactly like Palpatine does when we see him use his saber in ROTS. They’re the only two characters we see fight in that distinctive way.

At any rate, I think trying to remove Rey Palpatine is folly as it’s such a central element to the film. I think a fan editor would be better off trying to strengthen the Rey Palpatine link rather than remove it, although I don’t have a clue how!