I linked to the article.
https://www.forbes.com/sites/paultas.../#22b2a565776d
“We think of Star Wars as a fairytale. Two twins: One is sent off to be a farmer and one is sent off to be a princess. Rey is kind of both.”
Straight from the mouth of the Writer, folks. It's obvious that Rey has no personality so their strategy was to keep giving her Force power ups and cool things associated with other characters. They gave her Luke and Leia's orgin, Chewie, the Falcon, Anakin's chosen one status etc.
Finn needs to steal a last name. If Rey can do it he can do it. He should call himself Finn Solo