If RO had no vader or final 10 minutes...then its just another mission in space film
Still felt very much like SW compared to TLJ imo.
And that's the thing, there was the Vader scene. Removing the Vader scene at the end after showing him on Mustafar would have generated outrage, but they knew they had to put it in there, because you don't do that to the fans.
In TLJ, you have Luke, but he never gets "that" scene. That could have half-saved the movie if they did give him one, they didn't.