I think that was about making the force more democratic as it were, Rey being a nobody and not having to have magic mutant blood or be the scion of demigods.

JJ on the other hand would have been fine with making her Luke’s daughter or Kenobi’s, and settled on Palpatine as the answer.

Because people complained and said where does she get all these overpowered abilities, like she has god mode, a cheat code within a video game. How does she get the better of Kylo Ren when he was trained by Luke and Snoke, etc. and they will bring up how Luke was just a farmboy who had little or no training, when he rushed to face Vader on Cloud City. And lost a hand. A Young Rebel in the Rebellion, who somehow could just abandon his post as a commander in the military, to go to Dagobah. that makes no sense. Han leaving to pay off a death mark makes sense. Those are complaints about the original trilogy and not the sequels.