Rey won a lightsaber fight without any training at all. This indicates that she is special and incredibly strong in the force and it begs for an explanation.
When was this lightsabre fight?
In TFA.
You are referring to the sabre fight vs Ren in TFA - where he was already injured from Chewbacca’s powerful crossbow shot, was bleeding from it, also taking a hit from his sabre fight with Finn, and also felt conflicted & weak over just killing his father? In a fight in which the aim was not to kill Rey - but to bring her to Snoke… a fight in which he actually offered to be her teacher… and in which Rey was on the backfoot for nearly all of it before ‘letting the force in’…
Rey didn’t win the lightsabre fight at all… even after ‘letting the force in’ as it were - though she had gained the upper hand by scarring him & put him on his arse - yet the fight was broken up by the planet coming apart…
Um, she did win the fight. The only reason he survived or wasn’t taken prisoner is because of the planet coming apart.
No, he’s just on his arse. There was no winner due to the planet coming apart.
She may well be special and strong with the force - Snoke’s on-screen ascertain to Rey that… ‘So much strength. Darkness rises and light to meet it’ & ‘I warned my young apprentice that as he grew stronger that the equal in the light would rise’ (and his mistaken assumption that was Luke - not Rey) is a statement of this. That you choose to ignore this as an explanation is on you.
As I said, I buy that explanation because this thing of the equal of the light rising wasn’t shown or referred to in any of the other movies.
Things evolve and change over the course of these films - that they aren’t mentioned or shown previously does not negate them. That it is mentioned on-screen - whether you agree, dislike, or ‘buy’ it - does not negate it.
If you want to ignore an explanation then go ahead and ignore it - but don’t then state there wasn’t one / or that it then ‘begs for an explanation’.