I mean, I hate to defend TROS but the very first thing we see Rey doing in the movie is failing. Because of her failure, she decides to run the training course again, the implication being that she’s done this many times and so naturally knows it by heart at this point. They literally went out of their way to appease the fan complaints.
But who cares about what’s actually in the movies when you can put “Mary Sue” blinders on. Gotta twist everything to prove your narrative is right!