I won't say much about the episode in particular. Once again we have one effective scene after another. The middle part of this season has been fantastic. Jaime Lannister talking to the Black Fish on the drawbridge. Arya going through her stuff. Margaery confronting her grandmother. The Hound. These were all well-written, well-acted scenes. In particular, I thought the scene between Yara and Theon was exceptional, as she tries to convince her brother to return to his former self. The quality of the acting is absolutely wonderful.
The one problem that Game of Thrones has, and has had, just became amplified, to the detriment of the series as a whole.
When Jon Snow was shot up with arrows by Yigrette, and somehow survived, we lost a little bit of trust with the author. They played it off as if she's such a great archer, that she purposely shot Jon full of arrows at points in his body that wouldn't be fatal. Not a great answer, there.
The problem is that we have main characters that are clearly mortally wounded, and they somehow survive. Or, they die and then somehow survive. You do this once, you get away it. But every time you try it afterward, it's going to continue the damage between the viewer/reader and the author, because, in fact, we're being lied to.
It's particularly bad in this episode. It's revealed that the Hound has survived. There's no way he could have, given his wounds. They play it off as if it was the gods' will. Once again, not good.
Then in the same damn episode, Arya is wounded, clearly mortally, yet at this point we have absolutely no expectation that she could die. In fact, I wouldn't be surprised if in the next episode it's revealed that Ned Stark survived, sans his head.
I hope that the story gets back to a more believable place, where mortal wounds actually end up being mortal. Our trust needs to be regained. If death isn't connected to finality, then it's really not death. It's some absurd fictional tool that causes us to lose faith in the story, and using such a device repeatedly is not something that should be done in a tale of such high quality as what Game of Thrones has proven to be.
If Arya died from her wounds, the trust would be regained. However, who really believes that could be possible at this point?