I am sad to see the rollback on Frostwork. I play Cold a lot for some time now. I don't take Frostwork because its not useful in my mind. With its max HP buff I never saw it doing anything and specc'd out long ago.
With the Absorb buff I can see it working and was really excited by that change. I had a planned build to spec into once it rolled out. As someone who actually plays the set, too bad.