Barrier is situational as it is, but I don't buy the argument that Blizzard doesn't want us to use it. It's our 31 point talent and wouldn't be in the game if they didn't want us to use it. It's a poorly designed spell as it is requiring people to stack to use it or as a tank cooldown hoping the tank doesn't move. This nerf makes an already poor spell nearly pointless to even pick up, which is sad considering it is a neat spell as well as our 31 point talent. This nerf makes no sense to me.