i have done 3CM several times today and can confirm the damage bug has been fixed and the area it hits appears to be accurate, dont forget a wave comes out at almost exactly the same time which would give the impression of a larger area. the damage lingering after the initial hit is still there but i believe that is as intended as the boss sets the ground on fire. from a mele perspective i wait for the fire to go down, can get in mele range, do a full dps rotation and get far enough away for the next set of pulses from the bosses attack. rinse and repeat (: