An 18-point Top-10 road win isn't enough to move the needle for 20 AP voters.
The AP Top 25
Utah keeps riding their Oregon win and gaining traction. The Utes have 16 first-place votes, but someone needs to explain to me how the #3 team in the country is an underdog to an unranked .500 USC team this weekend. They have wins over #15 Michigan and #20 Cal, and they don't have any other currently-ranked teams on their schedule until the Pac-12 title game.
TCU fell from #3 to #4 after their win over Iowa State, but the Horned Frogs still have to play West Virginia, at #14 Oklahoma State, at #17 Oklahoma, and #2 Baylor.