Her parents’ ship never made it off the planet? I guess this calls for the old “child Rey electrocuted the ship” trick.
Personally, I’ve been pushing in the other direction to make Pasaana into a unique world, first by making the sky green, and hopefully down the line giving it a tropical beach look like Scarif. I have a decent but unpolished mockup of a beach where the Falcon lands.
Jakku being Tatooine is a must in my book. It makes sense thematically (it rhymes with the other trilogies by serving the same purpose Tatooine does in them) and it looks virtually identical.