About using the new healing illustration and AI line about Rey gleaning it from the texts. It’s nice to involve the texts from TLJ in the story and show she’s been studying.
And as an added bonus which isn’t necessary but doesn’t hurt anything, if a saga-only viewer wants to have a headcanon about this ability having been lost, they can. But it would not introduce anything to suggest that this was the case, either. After all, Ben seems to know how to do it no-problem. Unless the head-canon-er wants to interpret it as him having learned about it via receiving it.
So it may introduce some slight confusion in that way.