Thanks for brainstorming. If you removed any healing at all before Ben resurrects Rey, then I think it would feel out of left field, because nothing before that point would’ve shown Ben had that ability.
Since we see Rey use the power twice, and once on Ben himself, we can assume Ben learned how to do it too, just like Rey learned how to influence minds when Kylo tried to force Rey to show him the map in TFA.
I do think some more set up to elements in TROS would be nice, though. For example, I think it would be interesting if there was more set up to the Dyad concept. Kylo says, “Dyad” in TFA, and you probably can make Snoke say, “Dyad” somehow too, or if you dub him like you suggested. I think the dubbing idea you have could also be useful for the Oracle, if we get that deleted scene, and depending on its dialogue. Too early to say I guess.