I'm wondering if the Illinois SID just keeps voting for them simply to keep their name relevant. They've been receiving a vote for several weeks now, not just after their win over Nebraska.
Houston could easily be ranked and if they keep winning, they will be.
Yes, Iowa is the lowest ranked unbeaten from a P5 conference. Though several of the 1-loss teams ahead of us have been established in the rankings for a much longer period of time.
On a somewhat-related note, it's kinda funny how now Stanford is back up there in the rankings, at #16, ahead of both Iowa and Northwestern. Guess what you do in week one doesn't matter that much.
I also think Michigan State should've dropped a little further after struggling against Rutgers. LSU may not have much of a passing offense (and they haven't since the late 2000s), but Fournette would make Sparty's defense look silly.