Given the amount of dead and the way they portrayed them taking the castle, everyone should've been dead. We were shown an unstoppable, untiring, unthinking gibbering hoard that washed into Winterfell like a tidal wave.
In the absence of a Night King level threat, the "game" of thrones is super interesting, what with all the politicking, maneuvering etc. When a Night King level threat shows up, it shows just how utterly meaningless that "game" is.
I was actually disappointed that more didn't die. Not because I want them to, but we know not everyone is going to make it out of the story alive, and it would've added more realism to the battle and the way the enemy was portrayed.
Really--how this should have ended--would have been with Arya flying through the air (roll credits)
Cersi then sees Jon, Dany, and all the mains as wights as they all marched to Kings Landing.