Nev, thanks for your responses to my bullets. All clear and interesting. On the Reydream, you say:
“After trying a lot of different approaches to a dream sequence on Jakku, I came to the conclusion that using actual footage of the island was a mistake. At this point in the story Rey should have little to no indication that she is Force sensitive.”

However, we are told in her dialogue (I forget which movie, but it does happen) that she dreams of an island. Explicitly showing her dreaming of an island really doesn’t contradict that. It doesn’t necessarily imply that she’s Force sensitive either, since it’s not confirmed prophecy until she actually goes to Ach-To, which happens after she first actively uses the force.