Been playing a warrior since classic, and while I tend to stay away from pvp for the most part, I have enough of a feel for the class itself since it is the only thing I have really played for 6-7 years. That being said (bear with me please,) the reason that the pendulum seems to swing so drastically for us and why they won't straight buff us is because they are afraid of what it will do. History has proven that inconspicuous changes to our class can cause it to be dramatically overpowered, Rage is an unpredictable mechanic, and all specs of warrior scale so well with gear that they are uncertain how min/maxing our stats will affect the outcome. So they would rather leave us nerfed than make a change and have warriors end up burst destroying everything.
But it's not bias; it's fear, that drives the warrior design choices. Just felt the need to clarify that.