TLJ definitely echoes ESB but there were more differences than similarities. The major plot elements of TFA were ripped, even chronologically, straight from ANH
So was the plot of TLJ, seriously, let's look at the structure of Empire Strikes Back in reverse:
Act III
- Protagonist (an inexperienced force user equipped with a light sabre he/she inherited through his/her earlier adventures) attempts to find an old Jedi master, as far as we know, the last one in existence.
- Protagonist asks old Jedi master to train him/her, instead the master is hesitant, effs about but eventually gives him/her handful of basic tips, some basic training in lifting stones, feeling things etc
- Old Jedi master warns protagonist about dark side lurking nearby, protagonist ignores warning, "goes there", gets spooked when the dark side only show him/her his/her own reflection
- With training unfinished protagonist decides to go and face the villain, the old Jedi master thinks he/she is not ready
- Protagonist ignores warning, goes to face the villain, things do not go according to plan, parentage is revealed, offer to "rule the galaxy together" is thrown onto the dance floor for good measure
Act II
- after a short space adventure, due to inability to use hyperspace travel to escape enemy forces, group of side kicks to main protagonist embark on a mission to locate a man that can help them (with survival)
- The man they were hoping would help them is forced by the circumstances to turn on them, betrayal ensues, they fall into the trap of enemy forces then escape with help of a droid.
Act I
- Bunch of remaining rebel forces are hiding in run down base on white planet
- Enemy forces led by villain in black locate them, send serious fire power including AT-ATs to destroy them
- Battle ensues, rebel forces try to defend the base with antiquated equipment
- handful of main characters barely escape with their lives in Millennium Falcon
Does that sound like something you've just watched this Xmas?