I'm gonna have to go against the grain here and say this was a poor episode for Game of Thrones standards and not even in my opinion on how the story line will play but the actual episode in it of it's self and in comparison to the rest of the series
The whole season like many have pointed out has been way to hectic without getting any real satisfaction or grasp of the scenes because they're so rushed to advance the plot, as Sansa said this episode Jon has be gone for weeks yet the pacing is so off that nothing can be placed or timed easily and there's just numerous major jumps that seem right to.
So many decisions that just seem absurd and are just for convenience so the guys make it out (the whole expedition/plan was a farce anyways regardless and made up on the spot without any consideration or thought into Cersei's response to it but even ignoring that), that 1st ambush on the tiny group and being able to take down a Walker with such ease so simply to leave one undead remaining (WHY DID ONE REMAIN?!?) for them to bring home was too outlandish and unbelievable. Then only for them to have Gendry be the only one to return(?) to send a raven in time and have Dany save the day all in ONE EPISODE as they sit in a LOTR circle of undead and obviously evacuate unscathed. With the exception of Night King hitting the flying moving dragon at a further distance than the obvious one sitting stationary with the gang!?! Damn, took me way out of the whole episode, no immersion and I thought it was mess compared to say the pit scenes with the dragons or even any other really. Granted this is unprecedentedly more epic and huge in stature but I don't think they did it justice whatsoever
I get the direction they've decided to take the show and I can't blame them, what with not having the books to lean on but I can't help but think how if they (final books) were out by now this whole expedition would've been a whole season with a lot more too it than feeling nothing as I watch a beautiful scene as a dragon comes crashing down black hawk style, and finally what an injustice Benjen going out was... Just sums my critique of convenience and lack of depth especially with the fact that he could have made it out together on that horse but he gets the standard cliched heroic deus ex machina death to "slow down" the dead which is a dumb excuse to sacrifice himself
