[robto]

The books weren't actually destroyed, there is a shot of Rey with them on Millenium Falcon at the end of the movie when they pick up all the survivors. I was actually really excited about this foreshadowing a Jedi reformation - a rediscovery of true orthodoxy a la Luther and a rejection of the corrupt ediface of the Jedi Order, as seen by its fruits. This was further paralleled by the stable boy at the end using the force to summon his broom - a parallel to turning over of interpretational authority of scripture from the ecclesiastics to the laity.

Of course, all this was thrown away in the next installment, so it turns out I'm the fool!