It will take a few viewings fellow Blues to see what RJ was doing in this film. You have to move away from the original storyline and that is what was being told, along with the theme of failure.
I left the cinema feeling really let down by it along with my 12 year old son who is into Star Wars and plays the Old Republic online game that revolves around the SW EU. The film cannot tap into those fans that need the franchise to follow the EU because that is not what they want to achieve and would not bring onboard new fans to the SW franchise.
The Snoke killing seemed like WTF but watching* the film back it opens up other avenues. Snokes backstory will be told but it wasnt relevant in TLJ because if Snoke comes out with this big storyline to Rey...she would basically just go ‘Who’. The story here us that Ren spots his opportunity to kill his master as he is pre-occupied concenrating on Rey - basically sticking to sith tradition that when the apprentice sees weakness he takes his masters place. Ren being characyer assasinated by Snoke prior to this scene is the build up to Rens thoughts towards Snoke.
Snokes line though that ‘he can never be betrayed’ is very strong because this obviously leans towards he has been betrayed before but was never truly killed - links to plagueis etc etc.
Watch it again and go into it open minded. Watched it about 4 times after seeing at the cinema and my mind was changed. There are lots of hidden items in the film that show that a backstory is needed and can be told but it also now allows RJ to go in a new direction with his trilogy when it starts filming