Luke talks to Kylo? Have “See ya around kid” from TLJ actually foreshadow TROS 😉
Unfortunately he also said he doesn’t want to upend Luke’s epic first appearance. Not unless it were something truly warranted and seamless. I can’t think of any Kylo scene off the top of my head where it would help.
I’m of the opinion that Leia needs to have a very specific reason for abandoning her Jedi path in order for it to be satisfying. Plus, this way she is explicitly following in the footsteps of her mother, Padme.
If it is because she thought it was more helpful to be a politician, why is that? If she would’ve remained a Jedi she wouldn’t have had to look for Luke all throughout the trilogy to gain his help. They could’ve just been fine with her.
The Resistance wouldn’t have even existed in Episode 7, for one thing. The relationships she made helped form it. Luke’s Jedi Order was also very secluded from the galaxy (and for good reason, look at what happened last time).