For one, it doesn't matter this year. No voter is analyzing the games from November 26/27/28. In 2004, you had three legit contenders from major BCS conferences competing for a spot. The voters and media WANTED Oklahoma/USC. They found their official opportunity to make it happen.
This year, they could have boosted Bama to 1st, Texas to 2nd and dropped Florida to 3rd and it wouldn't matter. Texas will beat Nebraska. Florida/Bama winner will meet them in Pasadena.