They think they know better than the God of the Bible. In their patronizing phrase, "God is doing a new thing today".
IOW, God says whatever they say He is saying now in direct contradiction to all previous scripture, but Griswold & Co. are revealing His current beliefs. This lack of fear of the living God should scare any Christian.
Because I'm "washed in the blood," I'm not scared of these "new age" bishops, because their erroneous doctrines hold no sway over me or mine.
I am sorry for their sake, but I've always held that people are ultimately responsible for their own actions and beliefs.