I get that, I really do. In life we run into walls all the time; we make the wrong choices and we make mistakes and not everything is tied up in a neat little bow at the end.
But this isn't reality. It's a movie. It's a Star Wars movie. It's a clear cut, black and white, good against evil, space fantasy. What has been done is intriguing, but it isn't Star Wars and this isn't the movie to do it in.
You want to do a murder mystery or a thriller then yes, plot twists, red herrings and dead ends are the way to go. Star Wars is (or should be) a much simpler, linear film. Empire Strikes Back warns about the dangers of failure without wasting half the movie on a dead end chase to teach the lesson. I look at TLJ and I see writers who got too clever for their own good.
I know it's only my opinion but there was a better way to do this.
TLJ is somewhat similar to Empire - in that it's the middle film of the Trilogy - dealing with setbacks and the enormity of the task that lies ahead, seeing the protagonists at their lowest ebb (and they certainly are right now). The black and white issues of good vs bad - what it is to be on either side of that (or in between), to choose that - are somewhat examined and questioned in the middle film... (with more action than Empire).
Obviously, that leaves a LOT for the third film to complete - a bit like ROTJ had to go through and contain (and for some fans possibly why it's considered not as strong as the other 2 films - in playing it safe with repeating the 'beats' from Star Wars '77).
It's why (I think) some people were surprised to have JJ back on board for the 3rd film - JJ is great at setting things up in film and tv; he excels at this and it's familiar ground for him. For me, he's not that great at finishing his stories off (generally) - and thought it'd be given to a more suited director. Obviously, I hope to be proved wrong and the final film ties all 3 together and Ep IX itself is also a great film - with the familiar sci-fi fantasy elements of good vs bad that we are familiar with.
Right now, for me - until we get Ep IX... TLJ isn't actually finished, we're only half way there (after the set-up and re-introduction - somewhat safely done) of TFA. And because Rian Johnson subverted our expectations somewhat with TLJ - yet took risks to move the story on in a new direction with a 'different point of view' I think (and am probably wrong / in the minority etc) we'll have to wait until after IX until we can fully take in TLJ itself. That may seem a like a cop-out of sorts - yet it's likely similar to the wait between Empire and ROTJ for many of us. C'mon December '19!
Star Wars films for a modern audience, in these modern times (especially since the the recession of 2008, and where the world has gone - politically and in life in general) was always going to be tricky. Why isn't the Sequel Trilogy like the Originals - why is it the Sequel Trilogy so much like the Originals? Why are these films so political? Why aren't these films more political? Why are there animal rights views in this film? Why do we see rich people being portrayed as evil in this film? The green milk is horrible etc etc (and lots of questions and statements like this - and so much more with the Mary Sues, sjw, diversity, feminism, alt-right shit, online film rating systems, clickbait, monetisation of youtube vids etc etc).
(I hope that makes sense mate - got interrupted a few times during with stupid work and lost my thought process (it ain't that hard to that these days
- it's also why I'm looking forward to Solo - a fun space adventure set in the SW universe that looks a laugh - hopefully without all the crap mentioned in the paragraph above)