I think the problem is the whole thing is tied together with stupid rationale/writing that makes it hard to make any perfectly clean/rational changes.
If her parents were always dead beats, then you have to scrub a lot of the Orchi subplot, especially her vision scene “remembering” what happened. If that is the case, then there isn’t a ship to remember. You can still have it where he was suppose to find her but stumbled into quick sand one day and died while looking around for her. So then what’s the “real” story Kylo explains? “Oh yeah, your parents were jerks, but not quite nobodies since Palps got it on Clone style … you’re his grand daughter.”
If her parents were noble, then really TLJ needs to be trimmed during the throne room dialogue. She repressed the noble part of her parents, to then repress the hope of them returning to them being dead beats that died on the desert? Also, then it all is just kinda shallow anyway since it’s been back and forth. “Well, remember when I said they were bad, yeah, they weren’t, I lied. They loved ya and got stabbed.”
Personally, I don’t have a real answer to make it make sense. It may just be choosing the lesser of two evils.
(I still vote adjusting TLJ for Rey not to admit it … then she is still suppressing stuff and just isn’t sure about her parents … until it’s all revealed in this movie. Plus it goes along with “People keep telling me who I am, and I don’t know” to include “People keep telling me about my parents, but I don’t know”)