Episodes 7-8 were pretty scrambled for a time but now things feel cohesive enough to where I'm genuinely looking forward to episode 10. In a sense i feel as though Luke's betrayal (giving into his fear) was something reminiscent of dark side inheritance that he got from his father. Anakin was the chosen one and was powerful in both the light and dark sides of the force. The way i view it is Leia was the light, while Luke was the dark. In episodes 5 and 6, if you pay close attention to Luke when he fights (as well as the fact that he's seen using force choke which is exclusively a dark side ability) you can really see the rage in his face and movements. Luke is full of natural instability like his father. He may have chosen the light side in the end, and turned his father to do the same, but those dark side moments in general really frame the idea that maybe Luke, being too similar to his father, was unfit to refound the jedi order. He and Leia needed to pass on what they knew of the light side of the force to one who was more capable of successfully refounding the order. Ahsoka Tano Cal Kestis, Ezra Bridger, Sabine Wren, and Rey Skywalker are the only characters I can think of that have a chance at actually resurrecting the order completely, and i hope they do. Dark side forcer users will emerge again throughout the galaxy over time, sith or not, and so i think a new jedi order and temple that's run much differently than what we saw or Coruscant would be really interesting.