I finally watched the episode. It was on par with what I expected, if you catch my meaning.
The episode was action packed and intense, but there were many things that didn't make sense...
It seemed awfully convenient to the plot for Abby to happen to slide down a snow bank, stop right over an infected hole and make enough noise doing so to waken the infected. Maybe they're light sleepers. Also, why did all of the dead ones freeze to death right there, meters from the hole, if all of the others could run for miles without freezing?
When the infected were first approaching the city, why did no one shoot at them? They had, by their estimate, five minutes to thin their numbers and they just waited until they reached the wall. Then, they lit them on fire when their wall was made of wood. Not a great plan.
They didn't even shoot at the big guy (forget what he's called) as he was approaching the wall, and once he reached it, they didn't try in any way to stop him from breaking through. It felt like they gave up on defending the wall too soon so that the episode could get to the big firefight inside the city.
Then, as someone else alluded to, Joel's brother had some serious plot armor because many of the infected ignored him and ran right past him while he was trying to get the big guy's attention. I know that there were other people on the street, but you'd think that they'd go for the nearest target.
Where was Ellie's partner when she was entering the lodge? We saw them together in the weed shop, then she was suddenly at the lodge by herself, then he re-appeared at the end of the episode. In fact, it seems convenient that so many characters all happened to be wandering around in bad weather and stumbled upon each other at the right times.