It's not just the fight between Jon and the Night King. It's the fact that the Night King and the generals did nearly nothing other than the dragon fight and a lot of slow walking.
I'd probably add some sort of history about the walkers narrated by Bran in the episode prior to give their motivations more meaning. Something more than "he's coming to kill me to erase the memories from the world." Nigga there's a whole Citadel!
And what good did Bran's knowledge of the past do in that fight anyway? Why was his knowledge a threat to the White Walkers?
Hell, they found out about dragonglass from Sam and where a shitload was from the Citadel. And Sam found out about Jon's ancestry and had to tell Bran about it.
And I'm over the gang shit, these are my gripes as an objective observer.