Sounds like an apples to oranges comparision. I understand that the coeffiecient on LB has been lowered. But you are trying to compare a

level 70 shaman with ~1400 +spell damage and ~500 haste

to a

level 72 shaman with ~1520 +spell damage and ~360 haste

There once was a czar that was told the providence that was most effected by the plauge also had the most doctors. So he had all the doctor's killed.