If Rey is linked to Anakin like a reincarnated version of a Chosen One (which would hardly be the first time Star Wars has ripped off Buddhism and other eastern religious philosophy) ... then her having Force abilities without training would make sense.
As long as that reincarnation in some shape or form, keeps and retains, to an extent, memories of Anakin to at least allow her to remember techniques.
The problem that I have with the idea of Anakin's reincarnation is that he appears at the end of Ep 6 all happy with Obi-Wan and Yoda in ghost form, so I kind of find it cringy to imagine a reason why his recincarnation happened. Was he forced to reincarnate, perhaps by the Force itself? Like someone, the Emperor perhaps, trapped his spirit form in Rey's body to bring him back to life... to kick his ass for throwing him down that hole and betraying in front of Luke, or to try again where he failed in keeping him as his apprentice? Or maybe Anakin was like: "Being alive is cool, so let's give it a second go" and then he decided to reincarnate somehow, without telling Yoda or Yoda noticing? Maybe Yoda was silent or didn't matter to him to share that bit about Rey? My mind runs wild with this idea of reincarnation but I don't know, let's wait and see.
But I honestly feel like JJ and Co. don't give a fuck about Jedi training and they will just brush off the whole overpowered thing with Rey and they will just move forward.
I think I said this years ago when Ep 7 came out, I am fine with Rey being exceptional as long as they explain why she is exceptional and it is part of canon. We need to understand why she's breaking all those expectations of how things work and hopefully make her an exception because otherwise they are saying "fuck the Jedi and the Jedi training".
Nintendo is selling their IPs to Microsoft and this is true because: