Luke Skywalker has, understandably, been the center of my interest in Star Wars. So, from the moment the sequel trilogy was announced I was very interested in seeing how things have gone for him since ROTJ.
I was saddened not to get much of him in TFA, but was super excited about the promise of TLJ. Even though Luke turned out not to have successfully capitalized on his new purpose at the end of ROTJ, I’m glad his journey was mythically resonant in TLJ and found he had something to teach me in his journey. I feel TROS basically said about Luke, “You failed but taught a lesson in the process, and Rey will recapitulate your journey and incorporate this to carry it out later.”
I’m glad TLJ gave Luke a journey to go on, and one I’ve found personally very significant, even as evidenced by taking a bit of time and wrestling for me to reach that point.