Firstly, just because we can equip both versions does not mean we want both depending on how we're building. Second, being a melee dps is tough shit in coil (maybe less so on caduceus) if you wanna actually maximize damage and not suck. I love playing drg in there cuz it keeps me on my toes but damn I do a lot and reducing it to "staying at a mobs side and running around AoE's" is putting it very lightly.