Really enjoyed the episode - it was great to see Cersei and Tyrion sparring again, and reminded me of the old episodes when the writing was so, so good. Alas, that Littlefinger death farce did the same thing.
His death should have been a twist/surprise but it wasn't, because it came after the writers essentially lied to the audience about what was happening. He was written into a corner when he arrived Winterfell and the writers realised there was no more ‘Game of Thrones’ for him to play, so they just killed off the most clever man in Westeros - the instigator of the whole war - like it was nothing. A good twist/surprise is when a character does something unexpected but which makes sense (i.e. is true to the character’s previous thoughts, behaviours, actions, etc.). This, sadly, was a deception of the audience.
The evidence was those scenes when the Stark sisters were alone arguing/threatening one another. I presume we’re now meant to believe that they were simply playing the game, that it was an act. But why bother? No one was watching! Either they really did mistrust one another and then came to realise what Littlefinger was doing at the last minute (but again, we’re not shown this), or it was just the writers tricking the audience because they couldn’t work out a better way of writing it.
In an earlier post I said I feared that Bran would be used as an exposition tool to shortcut to Littlefinger’s death, and that’s exactly what happened. Bran the character is probably the main reason why the writing quality has declined, because he is now a cheap and easy narrative tool: rather than taking time and effort to figure out imaginative ways for the characters to learn things (as G.R.R. Martin did), the show’s writers can now just have Bran reveal them via his mystical ways and everyone will just believe him. That’s about as cheap as it gets.
It's been a weird season; consensus seems to be that it has been very enjoyable and great to watch despite the quality of the writing having declined. I think we just have to accept that it is now a very different show to that of the previous 6 seasons and that we should just enjoy it for what it is - although I have some hope that the critical response will compel the writers to up their game for season 8.