I watched it today and loved it. And I got serious KH vibes from it too! Luke & Kylo Ren/Ben = Eraqus & Terra. Heck, the Masters even said the same things (I failed you, Ben/Terra) to their students.
It's almost as if they had BBS in mind when making the movie Yes, I'm aware Nomura is a massive sci-fi geek and based Terra's story on Revenge of the Sith, and those scenes were most likely referencing those between Anakin and Obi-Wan so the similarities make sense. But I still found it so uncanny and I was geeking out so much
Also the Yoda scene confused the hell outta me. Like, how was he there?
That's exactly what I was thinking when watching. Vibes of Terra and Eraqus could be felt with this. Now I'm hoping for Luke to bug Kylo in Episode IX like Joker was in Batman Arkham Knight. Also with the Yoda scene, Master Yoda can still project his spirit to Luke because he has a connection with him. This was the first time in years that Luke was opening back to the force, so Yoda could talk with him again, reminding him of the most important lesson: "Best teachers, Masters aren't. Failure, the best teacher is."