Personally, while I do like a hero to have to earn and strive towards their powers/goals, the whole idea that The Force has to be diligently studied in order to be effectively used is somewhat blown out of the water when Luke uses it to make a one in a million shot to blow up the Death Star literally a day after finding out it exists.
The reality is, that Luke recieved some basic training in using the Force from Obi-Wan before making that one on a million shot. We also saw him struggling to control the Force in subsequent installments, and be easily outclassed by Darth Vader, even after he had been trained by Yoda.
Rey could do everything Luke could without any effort in a matter of days: Jedi mind trick, proficient use of a lightsaber, beat a Jedi master, move a ton of rocks. In all that time she got a single lesson in the use of the Force with Luke, that she didn’t get to complete, because Luke ran off. It’s just wish fulfillment, and completely contradictory to everything established in the Star Wars universe before the ST.