I still say the only film anything like that occurs in is, ironically, The Last Jedi when it demotes Rey and Finn from lead roles and promotes Luke and kYlo above them.
...But I will say that there *is* an element of how valuable a “family story” can be, as opposed to a “dynasty” story. What made the Vader reveal in ESB great wasn’t implying that Luke’s greatness came from his bloodline - it was that it showcased how horrible and terrible a family legacy could be, and showed what he was at risk fo becoming if he gave in to the dark side.
If anything, the Skywalker family story was about deconstructing the idea of dynasties - the relationships of a family matter more than an inheritance or a bloodline.
...And I’d argue that Rey Skywalker fans weren’t so much interested in some pseudo-dynastic idea as much as they were excited by the idea of her being the new lead in the family story... and how inadequate they would see Kylo as the new focal point of that story idea.
And if I can be blunt, I don’t see anything wrong with saying “Kylo Ren is a horrible and unacceptable continuation of the family story, and should have been offset by Rey Skywalker.”
I suppose a good way to view the “dynasty” vs “family” argument in the ST is whether or not you think Finn should be the male lead because he’s simply a better male lead and partner for Rey and we’re hoping she would be a Skywalker so she and Finn would both be a part of a multi-generational tale (family) or whether you feel that Kylo Ren is a “natural” male lead and partner for Rey because of who his parents are, no matter how badly he fits that role or how much he takes away from the films (dynasty.)
Rey kind fi needed the Palpatine connection because LFL gave into the dynasty argument itself when it demanded Ben Solo’s redemption be catered to over Rey’s needs as the main character, which was why Palpatine came back in the first place (he provided a Bigger Bad for Ben Solo to fight against.)