You need to open your eyes then, they've received primarily buffs. The few nerfs they had were to skills most good players weren't taking to begin with, and has no bearing on their primary strength: 1v1 domination.
I know what they received as I have a 50 Marauder. There are currently 2 classes that will be nerfed in the near future, for some reason they have been overlooked and everyone else got nerfed, those 2 classes and Marauders and Tank hybrid assassins. I will be proved right in time, it's quite obvious that they are both OP atm, so maybe you should open your eyes.