False equivalency my dude. Every melee has a mitigation except drg.Drgs have an AoE crit skill. Why doesn't reaper have one? They share the same armor and HP.
Where does it end?
That said, Nin can Bunshin their AoE for double, SAM has Kaiten to boost their AoE, idk what Mnk has in 6.0, can't comment and we don't know reaper's full kit.