I see what you mean by a a lot of what you said. I saw the movie this morning, and while I enjoyed it, I had similar issues as you. The original movies had much more depth to their plot and story, with action as the climax to said story. But the new movies have lost that touch. Regardless of any issues, I made it a point to come in with no expectations, and enjoy what jj abramas had made.
As far as the combat scenes go, I know a martial arts teacher who makes action movies and most of the hand to hand combat in this movie was plausible and realistic. Minus the future weapons, laser swords, and superpowers of course.
RE: A Geeky Dad's Movie Guide to Star Wars: The Last Jedi (2017) (No Spoilers)