Despite being in melee range of the King Mechagon boss, The Hunt and Coordinated Assault both charge you into the center of the bosses hitbox which is off the platform. The only viable way to use these skills is to cancel them with another OCGD like Infernal Strike/Vengeful Retreat, or be literally standing on the razor’s edge of the platform in the dead center. This is incredibly frustrating in a Mythic Keystone where it can easily happen to a Vengeance DH often causing a full wipe, and possibly ruining the key.
I would suggest coding it to not dash if the player is in melee/auto-attack range. I suspect it’s checking the distance between player position and a fixed point at the center of the npc model, which is why it’s frustrating for larger hitbox npcs.