I dont mind procs themselves. They shouldn't scale with Malacath though. Was surprised to see Malacath not getting changed to only affect class abilities.
Based how they described it, malacath won't work during the no-proc tests. It checks for a condition. No damage procs, no stat sets with condition checks like seducer or Bright Throats, no arena weapons, no monster sets.
On the other hand, the big nerf to all sources of critical damage make malacath even more attractive in pvp.
Personally, I think they are heading toward completely eliminating builds in pvp to stop the endless complaining about balance. We'll get 40 or so old, entry level stat sets and thats it. It achieves the same goal, no more proc meta, or any meta at all, once and for all.