a: you're not "locked" into weapons, since there are no weapon drops in antorus in the first place, and you're not locked into relics really
b: are you an MM hunter? because not many specs benefit from using past tier sets when you realize you give up over 25 ilvls for it. if that's the case that's an outlier and should probably be fixed, and it's not unheard of blizzard nefing 2 pc bonuses should they became too good.