Given the cast they are working with I'm not sure how it's so wrong.

My big problem is I don't care about any of them. In Game of thrones, both the TV show and the books I had characters to love and hate and then change my mind about. This has none, I couldn't even tell you their names.

There is nothing to sink your teeth in to, there is no hero, no villain, no love interest and impotent dragons.

I understand the idea and the need to carry on the franchise and sometimes it works; Better calk Saul, Frasier to name but 2. This doesn't, we know the history, we know the backstory.

Within half an episode of GOT I knew every characters name, 5 episodes in I can't recall 1.