As far as her powers go, I’m under the impression that the Force has literally awakened in the ST. I don’t think it is a static, non-changing energy field. Every Force-user in the ST, including Rey, are capable of powers we have never seen before until now, and I think the Force itself is playing a part in it, hence The Force Awakens. Could they have made it more nuanced or something? Sure, maybe, but it doesn’t ruin the movies for me. I’m satisfied with that and have moved on.
Yes, this seems to have come about because the current filmmakers are telling two new stories (in the films) at the same time: a character whose inherent affinity with the force is stronger than we’ve seen before, and a force-using protagonist who happens to be female.
They might have gotten away with one or other on its own (I’m not convinced by that), but to have the nerve to put them both together? MARY SUUUUUE