A reddit comment from u/Fainleogs regarding Rey:

It’s not that Rey Palpatine is inherently bad but they seem to have forgotten the lessons not just of the OT and TLJ but of JJ’s own film in The Force Awakens. In TFA they specifically avoided drawing out the “Kylo is Han and Leia’s son” reveal to avoid it being hackneyed. They just gave it to us pretty up front Then they give us emotional pay off via Han and Leia and Han and Kylo. In this film they labour endlessly over the reveal but do nothing with the emotional fall out

And while the conversation always comes back to Nobody/not nobody, the Palpatine reveal completely invalidates the mot important part of that story for Rey. She devoted her life to staying on Jakku waiting for family to return and it turns out her family weren’t coming back because her family didn’t love her. Now it turns out her parents were deeply good people who loved her dearly and gave up everything for her. Finding them has been her motivation her whole life, she’s mad about it for half an interstitial scene, then she forgets about them and declares Luke and Leia her substitute parents.

I mean, Rey, track down your mother’s maiden name and take hers. Your parents died to save you and you knew them a lot longer than Harry Potter did.