Is this all with avatar and T4 gear? Just curious... if you had T3 armor, and nightmare wraps, with no void bane gear... what type of parse would you expect?
Looking at a previous parse you posted and this one (assuming you had CoB up all/most of the time both parses), due to the change in CoB from spell to melee crit it more than doubled so thats good news in that it will help offset some of the raid's lost dps.