I guess we see her speak a couple other languages there with other people at or around the outpost.
I guess to me… I get the criticisms with her Force abilities, but beyond that it felt like looking for excuses to describe her that way.
Her having skills learned offscreen isn’t being a Mary Sue; it’s far more surprising a janitor is part of a firing squad to me than Rey is a good pilot and can speak to droids and Wookiees.