You should be mad at Cory Barlog really. He had a vision for the Norse Saga and was responsible for the first game being so good. But then he bailed because his wife almost left him with his kid, and he basically gave up on the Norse games. He was also the one who begged Eric Williams to direct the second game.
In a way, he betrayed the players after promising so much in the first game, but you can't really blame him either for choosing to save his marriage over directing another God of War game.