Okay, but also George Lucas named the protagonist Luke S.

Rey is not a Mary Sue. She starts as essentially a slave, has negative impulses, is over-confident about her piloting skills, has deep psychological abandonment issues, nearly gets her ass handed to her by a severely injured Kylo Ren, is called out for her cockiness by the cockiest character in the franchise, and doesn’t win a fight on her own in the entire sequel trilogy.

Luke trained for it Rey touched a lightsaber to get it and she's a Palpatine that's the ONLY thing they can think of