This happens year in and year out. The BCS has all SEC teams strength that much higher than that of the Pac12 or any other conference. I wondered about this several years ago and then looked deeper into what constitutes the BCS.
To figure out who gets to play, a complex, mathematical formula is used to rank the top 25 teams throughout the season. Each Monday, the BCS ratings are updated based on the teams' performances during the previous week. At the end of the regular season, the top two teams in the ratings play each other for the national championship. The calculations performed by a small number of mathematicians and statisticians off the field are more important to a team's chances of being in the final game than their efforts on the field. The computer rankings percentage is calculated by dropping the highest and lowest ranking for each team and then dividing the remaining total by 100, the maximum possible points. (Example: the 6 rankers have Team A ranked 2, 3, 3, 3, 3, and 4. Take away the 2 and 4 which leaves an average of 3rd place. The BCS quotient of this component would be 0.92. (23 / 25 = 0.92).
So then how can 66% (coaches poll, Harris poll) override a computer poll at only 33%? Great question. This system should have been dismantled years ago to a playoff situation.