The final Luke-Ren conflict was quite unbelievable. Luke was a hothead in the OT. Now, you can see that he has finally cooled down.
See, I felt this watching RotJ, so I didn’t care about this aspect of that scene. And like the comment that Dre answered above, a lot of people apparently are completely ignoring Episode VI in order to love VIII. Maybe not in order to, but apparently they are.