I still don’t see it as something that really adds anything, it only messes with Kylo’s character in TLJ, and adds an irrelevant layer to the revelations that make it harder to follow. All just to explain why a boy was interested in a girl.
Yeah, you can rationalize how it can all still make sense, but to me it’s similar to implying Luke knew Rey was a Palpatine during TLJ, it just messes with their entire dynamic.
And “lore” is not something tucked away in some novelization, is everything that gets explained about the universe. This includes Anakin’s conception, someone who doesn’t remember it would just be more confused, that’s what I meant. Even if we’re building off of previous movies it’s still better that the core concepts are explained on their own.