Dance of Death seems like it might be worse actually; yes it removes beneficial effects, but you have a lower chance of inflicting permadeath and only a slightly higher chance of inflicting doom.
I have to disagree with you on this one small part. Currently, lvl 3&5 of his fury grant a +35% effect chance. If that is kept in the rework, that would mean the new Fury, once fully Sharded, has a 100% Permadeath and Doom effect chance.