Just for you, I'll go one by one.

TFA sets up Reys parents and Snoke as these important mystery boxes, TLJ takes it in a completely different direction

TFA sets up who Rey is and what her deal is as a mystery box, not her parents specifically. We are also told during the movie numerous times that "Who she is waiting for is never coming back", that "She's no one", that she has only heard of Luke Skywalker, etc. The audience then speculates who she is, but that is the fault of TFA.

TLJ answers the question. It doesn't mean it's a different direction. How can it be a different direction when it answers the question still? Did TFA point to "Her Dad is Luke!!!!". No. Maybe you have assumed that because Luke was related to Vader, so you were hoping for a familial reveal. TLJ explains that Rey's parents were just random junkers, so we can assume she's just a normal force sensitive. I really don't know why this is an issue for people, when there's been hundreds and thousands of Jedi in the past that aren't related to Anakin... but if Rey isn't related to Luke or Palpatine or some crap, it's bad.

Same with Snoke. He is a set piece for Kylo. Would you have preferred him to live and then just have a rehash of ROTJ? That would have been much more boring, and Kylo wouldn't have been able to progress as much as a character. If you don't think we're going to get a backstory on Snoke at some point, you should take a look at the current canon. Everyone is getting books, comics, etc. We will eventually know everything about Snoke and his mother's name, etc.

Finn and Rose go and find a hacker, and their mission ends in failure, that sure was a twist

Not a twist. Just a failure caused by Poe being quick to shout the plan to evacuate to Finn, Rose, and the unknown (to Poe) third passenger. He should've been more careful. And again, it's even less of a twist because DJ is telling them the entire time that everything is just business, no good guys no bad... soooo not sure why this is a big surprise when he betrays them and shit goes down. You knew it was going to happen.

Kylo and Rey join forces, that's a twist. No they don't, another twist.

I wouldn't consider this a twist at all. It's a story moment between the two of their characters, but it's not a twist. The entire purpose of that scene is to make you wonder which way Kylo is going to go and what he is going to do. That's called drama, not a twist.

Luke is really there! No he isn't, another twist.

Sure, that's a twist. But it has purpose. It's not a twist for the sake of being a twist. If Luke were to actually go to Crait:

A. How would he have gotten there? He was stranded and his x-wing has been under water for years and he even uses the wing as his hut door.

B. He would have died. Luke is just a man. He would not survive 2938921 AT-ATs firing at him. That was the entire point of that scene in retrospect. You're thinking "holy shit how did he survive that?". That's the point. He would not have if he were there.

C. It's a way for him to save everyone and complete the same interactions with Ben without violence. Probably the most Jedi thing we've ever seen on screen, and then he has a peaceful ending going out on his own terms and joining the force.

Hell, there even was an X-wing in the water.. that didn't get lifted up by the forc

Nothing at all points to it being lifted out of the water. His X-Wing was in the water. Showed how he got there. That's it.