Because it will never happen. Who are they going to jump when the team they face in PAC CCG is a 3 loss Utah?

What is going to make them jump Bama, because Bama would lose to #1 Georgia and have the same record with a MUCH TOUGHER schedule. NO CHANCE. How about ND sitting at home? They have a better record than Oregon and what is that, they beat Stanford by 40, the same Stanford that beat Oregon? NO CHANCE.
Baylor or Okie State? I will let you take your pick. Both are ranked ahead of Oregon right now -- they play each other. You let me know how Oregon beating 3 loss Utah would jump either team? NO CHANCE.
If Oregon were playing Georgia, Michigan, Bama, etc. -- someone in the top 10 -- then yes, I could see them jumping teams. Beating a 3 loss Utah that they already played isn't moving them anywhere. I will go a step further -- they have zero shot to jump Michigan if they lose, as Michigan has played a much tougher schedule, and have two common opponents with Oregon -- Washington who UM dominated, while Oregon struggled and OSU - who UM played at the end of the year when OSU was dominating everyone and UM beat them more convincingly than Oregon.
They won't even jump Cincy, if Cincy lost to Houston. Because Cincy has a win as good as Oregon (ND at ND), a better record and their loss wouldn't anywhere near as bad as Oregon's.