For ww/rend, the big thing was to have Ambo’s pride auto-apply rend while whirl-winding.
However, when you have someone who disagrees vigorously, it does not make it class buff proposals.
If you have read the barb buff proposal, they proposed changes to 38 items/set bonuses and 8 passives.
See:
They also argued primarily buffs to supporting legendaries, but a 2X DPS boost to a supporting legendary is functionally equivalent to a 2X bonus for set bonus.