TLJ is definitely my least favorite of the Star Wars films because it didn't seem to do enough to advance the storyline for the trilogy. I think some parts of it were phenomenal as far as showing usages of the force that hadn't been seen before in the Star Wars films. Luke being able to project himself to another planet using the force was definitely something that hadn't been explored in the films or TV series and was a nice way to cement his place among the greatest Jedi. But to have Leia propel herself through space was too far fetched since there had been no references to her having any training to use the force. Hopefully the final one has better flow and ties up all the loose ends.
They need to let Dave Filoni be the creative director on these films because he is one of the few people who knows the Star Wars Universe as Lucas had intended.
Luke being able to project himself to another planet using the force
So...Luke finally became as powerful as Dr. Venture's former tenant Dr. Orpheus? That's disappointing. I regretfully watched The Force Awakens and have not watched another Star Wars movie since. That saddens me greatly given how much of my life I've spent loving the original trilogy
I think was something that had been previously explored in books with other Jedi and since Luke had been off collecting old Jedi manuscripts it isn't outside the realm of possibility that he taught himself how. And given that he was the son of the "chosen one" it wouldn't be a stretch for him to be a powerful Jedi himself. The bigger problem I have was Finn and Rey being poorly developed like they were teenagers. The X-Men franchise does a better job developing actual teenage mutants than the current Star Wars people have developed Rey's character. That's why I said Dave Filoni needs to be more involved.
When Filoni was working on The Clone Wars series, Lucas was present at every writing session and would explain various parts of the Star Wars universe. Filoni has shown he can create a new character and keep them true to the original visions Lucas had. If they revive the Obi Wan project then Filoni needs to be the one who writes it otherwise it will be crap.
Don't get me wrong. It wasn't a masterpiece. Solo did deserve better, however stacked up against the TLJ it was a much better film.