This!
I still remember watching Blackwater and man, I went insane! A battle is not made of simply smashing heads and screaming. When this episode was over I thought 'ok, what just happened?'. Game of Thrones has the power to change everything in a scene of like 5 minutes. But then we have a full episode where nothing really happens, with characters' motivation poorly built along the season and a frustrating end.
Shout out to Marshall, thought. It was visually perfect and I particularly liked the panning-scene.