Agree with almost all of the criticism in this thread. Here are a few trivial things that really bothered me as I was watching.
-Opening scene. Jon and Grey Worm have beef. Davos steps in and tells Jon "you need to talk to the queen". Jon and Davos leave to go talk to the queen. GW stays behind to slit some throats. Next scene. Jon is walking up the steps to talk to the queen and there's GW standing next to her. What de fuk? Are there two of him? Can he teleport like Nightcrawler? Did Jon stop in a pub for drink before heading over to have this extremely important chat with the queen? Just awful, unforgivably poor writing.
-Tyrion goes to the Red Keep by himself. Is he a bloodhound or something? Not only does he know to look for his siblings in the basement, but he ends up going right to the place where they are buried in rubble, and conveniently, they are buried shallow enough that he can easily uncover them and have a good cry. I don't know, maybe he could have stumbled across a partially crushed, surviving Lanister soldier who said, "I saw them go that way". Something, anything to help him know where to go other than his mysterious spider sense.
-Jon, after already having one conversation with Dani, approaches her again by the Iron Throne. Why is she there with no guards? I mean, she has clearly just murdered 10s of thousands of people. She might have some enemies. She doesn't have Drogon with her. Why would she go anywhere without a couple of Unsullied tailing her? Have Jon stab her, then take on a couple of guards. Would have made for a much more compelling scene and a nice bit of action in the finale.
-Grey Worm takes the Unsullied to Naath. But, what about the surviving Dothraki? Do they get a castle? Are they going back to Essos? Are they going to roam around Westeros raping and pillaging? HBO showed a bunch of them in the episode, so it isn't like there are only a handful of them left (which there should be after their stupid charge into the army of the dead). Either finish the season letting the viewer know that there are hardly any of them left, or give us some closure as to what happens to their fairly large group.
-I'm OK with Jon ending up at the Wall. I agree that it should be his choice, rather than exile (and it is stupid that GW gets a say in Jon's fate). But, when Jon says, "Is there even a Night's Watch left?" The next line should have been "Only a tiny percentage of the land north of the wall has ever been seen by man. There might be a whole city of White Walkers that we don't know about". Give the viewer a reason for rebuilding the Wall and remanning it with a combination of Wildlings, Rapists, Thieves....and Jon to lead them. I mean, they basically took the main character, and ended with him going somewhere to waste his time until he eventually dies.