Hmm... I thought you had to be in top 14 to be in a BCS game, but maybe they're just a.ssuming they would be when they wrote that?
Nah, that's for at large teams based on everything I'm reading. The agreement with the Rose Bowl changed once the Pac and Big 10 changed to 12 then added a championship game. The winners of those championship games have to be taken by The Rose Bowl unless they are selected for the BCS championship game of course.
Looking at the projections its EASY to have another SEC BCS title if ND loses to USC.
You are correct. ND could lose then Georgia beat Bama in the title game and face Florida a.ssuming Florida wins out. Bama could also face Florida a.ssuming they both win out and ND loses but I think that is a slimmer possibility because Bama beating Georgia would hurt Florida's numbers.