What bullshit exactly did Luke pull while untrained?
Luke flew(which he was already trained at with his T-16) and used the force to make a hard shot with guidance from Obi-Wan.
he then gets captured by a Wampa, gets shot down in a snowspeeder and is finally owned when he actually fights Vader and loses a hand(and would be dead if he wasn't Vader's son).
Perfectly deflecting 3 consecutive rapid shots from the remote completely blind because Obi-Wan said "reach out with your feelings"
Obi-wan's "guidance" with the death star amounted to his disembodied voice saying "use the force"
Force pulling his lightsaber (which he didn't even know was possible) to him without any guidance or instruction on how to do so
IIRC, in the old EU, between ANH and ESB, Luke communed with the Force but that is actually irrelevant. Who cares.
Its definitely irrelevant as that's now non canon. Which then brings us back to how did Luke - with no instruction or training on how to do so - perform a technique he didn't even know existed and had never seen or heard done and pull his lightsaber too him while freezing, upside down and dazed?
The point is, (for my tastes) the hero having one thing they start off with, fine. Anakin had twitch reflexes, so did Luke. Yodling is a 1 trick pony to so far.
Where it becomes eye rolling for me is when our hero effectively becomes Superman (another character i have MAJOR problems with; Neo from the Matrix as well) and just has all the superpower gifts. Weeeeeeee!
As I explained Luke had a little more than twitch reflexes but sure, Rey shows a greater variety of use with the force than Luke, and if you dislike that its your opinion and that's okay
But lets not pretend there isn't a precedent for what she's doing through Luke and lil green
The obvious answer is the one Obi-wan gave in ANH
They're not just "doing" these things its the force doing it through them, flowing through them
Luke: you mean it controls your actions?
Obi: partially, but it also obeys your commands
In response to necessity and due to their natural connection to the force, Luke, Anakin, Rey and Yodel's actions are letting the force flow through them and the force is answering their call for help and guiding their actions