That's what I was thinking too, the trinket actually isn't as big of a deal for them as it would be for us since we benefit from all of the crit from the proc 100% of the time and they don't. If the trinket stays the way it is, it's better to give the trinket to ret over warriors. That just makes me feel weird and squirmy.
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The problem with that is on single-target fights, the trinket doesn't give as much consistency so warriors would be hurting their overall DPS by doing that.