I'm rewatching S5 at the moment. The first ~five episodes actually aren't all that bad. Stannis is at the Wall with Jon. Arya's just getting started at the House of Black and White, so it isn't horrible yet. Tyrion and Varys is relatively fun, and then Tyrion ends up paired with Jorah. Margaery and Cersei are at each other's throats in King's Landing. The pacing is obviously so much better as well. And then as you said - Hardhome is a great action episode.I'm surprised this season is being ranked worse than 5, i thought it was great up to episode 4 and then went off the rails for the last three. I dont remember anything in season 5 other than hardhome.
Edit - edit oh wait 5 had dorne! Yea worst season by far.
It's not a good season, but I definitely think it's better than Season 7.
I don't think they could walk around it or they would have done so by now. Can't the Night King freeze things with his presence alone? And I don't think they could just attack the Wall's gate either - it's not just a big slab of ice stopping them from getting through. There's meant to be magic in the Wall that prevents them from passing through as well. There's other ways this will eventually happen in the books (the horn), but obviously the show wouldn't want to introduce that so late in the game. I just think it ended up very contrived.They could have just walked round it right? It's on a coast so they were probably waiting for the water to freeze (or planing to freeze it) and walk around. Or they could have bust through a gate with giants like in season 4.
They had a few options but now they have a dragon they could attack.