This is true, Rey is neither a Jedi, nor trained. She is just "strong in the force"."Trained" is an interesting way to put "Learns how to Jedi via deus ex machina."Rey is a trained Jedi. How is PS8 unreasonable?
Speculation: her vision is more a revelation of a suppressed memory then anything else - it's the only place we see the Knights if Ren, and they are surrounded by dead bodies. In the vision, one of the Knights is about to kill Rey, and Kylo kills the knight instead.
Conclusion: Rey was one of the young Jedi trainees at Luke's school prior to Kylo's attack. He saved for (for reasons yet unclear) and she was left on Jaku with her memory wiped to protect her from Snoke. That's why Kylo freaks out when he hears that a girl helped Finn eacape - he has an inkling who it might be, but then it would contradict his statements to Snoke that indicate he doesn't know her.
How else does Kylo's quote about her becoming more powerful the longer it takes to find her make any sense?
