Voss Caltrez said:
In hindsight I really like the fact that telekinesis was saved for The Empire Strikes Back, and The Force seemed like something you had to really work at, even for someone strong with the Force like Luke.
With the little bit of “training” Luke had in STAR WARS it was never established that Ben even taught him how to use telekinesis so that ability came out of nowhere. Truthfully both of them shouldn’t have been able to do that.