Actually, Utah and Boise State have legitimate rights as well. They had undefeated seasons too.
Boise State should certainly be offered a BCS game over Pitt by your math.
I think that an unbiased person can look at the two losses - Cal's loss to USC in the final play, and Oklahoma's humiliation of Texas 42-0 and come to the rational conclusion that Cal's only loss was so close to being a victory, and against the number 1 team in the country, that Cal should be ranked over Texas. Both polls certainly reflected that.
No, to really screw things up, it takes a computer. Nothing like encoding bias into software to make something really stink.
Oklahoma beat Texas 12-0. Not really a humiliation.