I feel like part of this new story is of the Jedi learning that their old ways of training were flawed. That this more loose form and self-discovery is a better more natural way. That is at least something I have gleaned from the movies at least.If Rey smacks down Kylo where is the epic story in that, its already been established that she is more powerful than him, and why do you need to bother training Jedi a'la the other 6 movies.
If she isn't a Skywalker whats the point of the 1st 6 movies? If she is a Skywalker why bother claiming her parents are nobodies only to retcon/swerve the audience in IX.
And also, why? Why is the audience expected to take the word of Kylo Ren as Gospel? Who cares if he said they were nobodies. Why does he have to be telling the truth there? Not even the good guys in Star Wars like to tell the naked truth, and we are expecting a villain to. One who's specific goal at the time is to try and convince Rey into joining him.
I totally expect that Kylo could be either lying, or maybe doesn't even know the truth himself. I certainly wouldn't feel some sense of betrayal if they came out and said Rey has ties to the Skywalkers. It's pretty laughable in fact to feel hurt over something like this.
First prove to me that Kylo knows all, and it telling the truth to Rey about her heritage. Then we can talk about Retcons, and swerves.