I that SOS up to this point in the season, or SOS overall? If overall, I'd not say ours is much easier than anybody else in the West. We all play the same teams; if anything, theirs should be easier since we play them, and they play us.
Look at Ole Miss: They play the West teams. So do we. They played Texas, who isn't ranked. We played OK State, who IS ranked. They played Vandy ... unranked. We played UK ... unranked. We play SC ... ranked. They play MIssouri ... ranked (and got beat by SC).
Their cupcake games: SE Missouri, Idaho, and Troy. Ours: Troy, Alcorn, and BG. I'd say there's not much difference there, but if there is, we have the edge with BG.
So that ranking has to be the first 7 games, not all 12. I might believe it then because we have the meat of our schedule left (a horrifying thought ....).