It manages to do much better the seeds of compelling new ideas The Sequel Trilogy introduced and squandered, but without all the falling back onto wanting to also be an OT Remake.
The sequel trilogy wanted us to believe that Kylo Ren wasn't a Sith but something different, but no meaningful distinction was ever made.
Nawaan in The Ninth Jedi is the opposite of a Sith, while the Sith are all about indulging in your emotions Nawaan's ideology is about trying to empty yourself of Emotions.
And that context finally provides a new meaning to Balance. The Jedi are not the opposite of The Sith but the Balance between these two opposite approaches to Emotion. The Jedi's flaws in the Prequel Trilogy are a result of being a little too much like Nawaan. Nawaan is what most people wrongly think Stoicism is, The Jedi are at their best true Stoics.
Now explaining why Kara makes a better Star Wars protagonist then Rey is going to be difficult to explain because of the sentiments I don't want to be mistaken for endorsing. I don't agree with calling anyone a "Mary Sue", I don't even think having a protagonist be perfect from the start never making mistakes is an inherently bad thing in general, but it doesn't work for Star Wars. Kara makes mistakes and has to grow and learn in exactly the way Rey didn't.
There are even other smaller ways in which this comparison is fascinating.
We have a story where one of our Mentors' has a valid reason to feel responsible for the villain's fall. But if this scenario or something close to it was done with Luke it would not have felt like a complete reversing of his core ROTJ characterization the way TLJ's twist does.
There's also a character whose role resembles what Leia's could have been.
Even the Kaiber Canon somehow does this, Functionally it's the same as Starkiller Base, how it's an ever bigger superweapon then the Death Star is exactly the same. But the context around it manages to make it more interesting.
Also of course the fact that it isn't aesthetically repeating the Rebels vs Empire, or even prequel Aesthetics, it is mostly all new Stuff, lots of compelling Seeds for a new Expanded Universe.
It introduced what are essentially Star Wars Dwarves but without feeling cheap and unimaginative.
The confrontation between kara and Nawaan in episode 4 felt evocative of Luke vs Vader in Empire Strikes Back but without feeling like it was simply copying.
As an Anime it also satisfying what you would want from an Anime. Kara even turns a Bounty Hunter to her side by defeating him like a Battle Shonen.