Holy shit their DPSers are bad.
that basically sums it up, I could tell you everything wrong with what your mages are doing but I have to leave work in 2 hours
I don't remember adds (unless you count the hunter mob and pet) on Karathress. Cleave and Sweeping strikes? You did a great job on him. I wish I had a WWS to compare to mine from before I got sloppy so I had an idea of if I had the same damage for BTs and WWs. Guess it seems normal since you had 27 BTs and 48 WWs to match rotation and it's a fairly short fight.
the warlocks are worse
The warlocks dps is scary bad.