is beyond my comprehension
Yeah sure. When did Luke see someone pull anything through the air or taught that he could do such a thing or even contemplate moving something with his mind before he did it out of desperation on Hoth?
Never. So Rey's discovery of her powers is consistent with Luke's. For obvious reasons they didn't take a movie and a bit to get round to showing that. There is zero basis for assuming that they should.
So you're fücked for starters. Easy.