Yes, but why. This is a dream job for any writer. All I can think of is that the original author got sick of their personal twists and just left them in the dark for this to happen, maybe they even had several fights. They just didn't know where to go on their own. I blame HBO really, they have to listen to the original author, and if he wanted the writers gone than thats what you have to do. Don't they have a team of senior writers to review whatever script thats handed to them, this are all amateur writer mistakes.
The Night King logic.. If I die we loose so I'm just gonna step in the middle of my enemys base when im perfectly capable of sending my generals and undead practically forever from my ice castle. This is just as unsatisfying as Madara in Naruto.