If feels really nice to drop the pressure of having certain percentage at exact points in the dungeon and while it will take some planning to get to the the mini-bosses as a tank main and not overcap the % - I feel like this could return some players to tanking and ease the pugging problem. On the same note, skipping may be much more of a "requirement" because you can collect % in better packs.
What are your thoughts on new affix/powers? ofc. we should be aware, that powers are still very much just in balance phase.