Yeah well, from the bits I've seen there's for example Compensated that boosts damage by 15 % if crit chance is below 20 %. Imagine stacking that six times with each piece... lols. So not at all surprised of this change, actually surprised it was possible in the first place. Sure over-the-top builds are fun but hardly make for balance. Ofc everyone who has a build based on these stacks needs to rework their character now and that's a PITA. Personally seeing only good chances though, for example both M4 and SBR get substantial damage boosts (and most individual gear talents have been buffed to compensate for loss of stacks).