It would be interesting to see whatever sort of master to-do list is used for changes like that. Since they keep remaking them with every version and all.
Whatever list they have is incomplete, since they forgot to put the ships missing for a frame back in the Battle of Yavin.
Ironically, those who dislike the SEs would probably be better at preserving it.
Perhaps not ironic, as it is emblematic of our respect for preservation inherent in our preference for the originals.