The laws of thermodynamics are referred colloquially as “you can’t win” and “you can’t even tie”. The first law states that energy is neither created nor destroyed in a closed system, while the second law refers to the entropy in the universe increases with time. In patch 2.6.5, barbs were weak but at least had five builds within about 5 GRs of the top build.
Now:
Blizzard would have been far better off by simply modifying individually the 6-piece barbarian class set bonuses instead of adjusting so many supporting legendaries, resulting in poor intraclass balance. For DH, I almost do not want a new set. DHs have several builds that have similar power and unique playstyles. I simply wish that Blizzard buffs each 6 piece class set appropriately.