Didn't CDPR said they won't lock branching dialogue choices behind skill checks? If that is the case, all the background/skill dialogues will just be flavor texts to flash out your character and the world's lore. So it doesn't really matter that much in term of spoiling different outcomes.
I dont read it like that. To me, it means that storyline branching dialog options wont be locked behind skill requirements. Not that skill-specific dialogs wont have any effect.
It can go the same route as VtM:B, in that skill-specific options make your life easier, open up different ways to the same destination. Same end result, but a different route.