I really like this approach, but some of the proposed exposition could be tightened up.
“You were adopted from the hoard of the Sith” > “She stole you from the Sith.”
“Chasing rumors of a congregation dedicated to Skywalker’s Jedi. But they couldn’t escape the sweeping shadow of the Sith.” > ?
“Because his spirit chose another vessel, rendering the others created by his followers as threats to his rule. Rey, you… are his clone.” > “Because his spirit chose another vessel. All the others became threats to his rule. You, Rey, were his clone.”