Subverting expectations, especially in Star Wars, could have been a good thing. It often IS a good thing. The Thrawn Trilogy, in my opinion the best thing to come out of the Expanded Universe (and I don't really care about the Old Republic fluff), did subvert a lot of expectations as well. You have Luke not really knowing what to do, you have the Empire being competently led and not being that much of a dick all the time, you have the New Republic basically not getting shit done for the most part... The books are a logical continuation of RotJ. The way the established characters were continued makes sense, the new characters are interesting and mesh well with the old characters. It's awesome. Timothy Zahn subverted some expectations, keeping it interesting (not just dumping a new super weapon on the Empire that has to be destroyed with a trench run), while also writing books that feel distinctly Star Wars. Due to the Empire turning a bit more mellow and nice in some aspects (and less focused on Sith bollocks and human supremacy) it's no longer as clearly black&white morality, which is also reflected in Luke having some issues with his excessive use of the Force.
Rian Johnson did it differently. Apparently, he saw that people complained about TFA being a direct copy of ANH, and thought "Well, I'm gonna show you. I'll subvert ALL THE THINGS".
You expected Luke to come back to help people? HA! Here's Grumpy drinking space walrus milk!
You expected Finn to come to terms with his heroic calling (or at least act more like he was a soldier trained from childhood on)? HA! Here's Finn trying to desert again, and when he finally has a character development from "slapstick side character" to "hero who can save the Resistance with a heroic sacrifice"? HA AGAIN! Subverted like a badass mofo! Have a sappy line about somethingsomething love and hate and whatnot instead!
And so on, and so forth.
Basically every scene was some form of BAZINGA! moment where it forcefully subverts the viewers expectations. Sadly, pulling that kind of movie off requires some serious skill, and TLJ didn't show that. It ended up as a disjointed mess that doesn't go anywhere. Which is a subversion itself, of course. Did you expect a coherent story with character development, continuity, likable characters and little to no plotholes? HA! Good movies are bourgeouis, have a deconstruction of what Star Wars is instead!