in the end all she got from Luke were a couple of incomplete lessons, and some books
Sounds like Luke in the OT, minus the books. :p
except that right after he got those lessons, Luke got his rear end handed to him by Vader, where as before the lessons Rey renders Ren helpless.
This has already been addressed.
Not to my satisfaction.
Yes I know. I’m just saying it’s already been answered. You disagree, fine.