I feel like you guys are making up reasons to call Rey a Mary Sue. There’s really not much suggesting either way whether or not Wookiee language is easy or hard to learn, so I’d personally take Rey picking it up as evidence that it’s easy. Not as evidence that it’s hard and that she’s OP.
Lol I think people are making misconceptions of what a Mary Sue and Gary Sue are and trying to broaden it’s meaning by tying it with Power/Ability, knowledge/knowhow, etc.
Yeah. Mary Sues and Gary Stus aren’t bad characters just because they’re super OP or whatever, but because they’re extreme self flattery (or flattery of another group, but it’s usually self flattery) with the subtlety of a jackhammer.
The original fanfic where the name Mary Sue comes from was a (parody of a) self-insert fanfic where the author’s self-insert was super talented and outperformed all the Star Trek characters because she was so cool and awesome, and they all instantly loved and respected her instantly for no other reason than because the author was (parodying) flattering herself.
The first people to accuse Rey of being a Mary Sue back in 2015 were more in line with this, but in a much less palatable way if you know what I mean.
I really don’t think Rey’s OP, though. Compared to Anakin and Luke, she’s pretty much on par for most things, albeit she starts a little bit further along with her abilities in the Force than Luke does. But for Luke, he doesn’t even believe it exists in ANH until the middle of the movie, doesn’t put any faith in it until the end of ANH, and doesn’t put complete faith in it until the very end of ESB. Versus Rey, who kinda starts off pretty close to where Luke was in ESB. She’s not a faster learner or naturally more OP than Luke, she just starts her movie further along than he started his. Beyond that, I’d absolutely say he’s a slower learner than him.
With Rey’s other abilities, TFA gives pretty solid reasons for them if you actually pay attention to the movie. She’s a good pilot because she has years of experience. She can fight using a lightsaber because she has years of experience with a similar weapon, and even then she’s not in a fair fight, it’s heavily stacked against Kylo.