This honestly only really applies if Alabama wins out the rest of the season. Right now, there are eight undefeated teams that could make a serious case if they won out (Oregon, Florida State, Kansas State, West Virginia, Texas, Oregon State, TCU, Notre Dame), that their schedule was tougher then Alabama's. Especially if you consider LSU possibly losing to Florida or faltering down the stretch, who would Alabama have played other then in the SEC championship game, that would be a top 10 team? The BCS rankings aren't out yet, but one thing to keep in mind is that the computers do consider strength of schedule into their equations.
It sounds ridiculous that a team that won the national championship just the year before could go undefeated the next and not get a shot to defend the title, but I really have to ask. If any of those teams are undefeated for the rest of the season and look good doing it, and Alabama is racking up wins against teams with probable losing records, with maybe a big win in the championship game, then how can you say that Alabama's resume will be more deserving of these teams? A Kansas State team with 4 top 15 wins? An Oregon team with 5 top 25 wins? A West Virginia team with 5 top 25 wins? A media darling Notre Dame team with 5 top 25 wins? A Texas team with 4 top 25 wins (2 probably top 10)? A TCU team that finishes the season against 4 top 10 teams (okay, highly unlikely they win all of those but anything is possible). Oregon State with 5 top 25 wins?
Judging from the teams above the most serious contender to the SEC getting their shot would be both an undefeated Pac-10 champion and an undefeated Big 12 Champion (or Notre Dame). You can argue until you're blue in the face that it's not Alabama's fault that their strength of schedule is imploding, but the reality is it is.
There's also the scenario where the SEC finishes the season with a 1-loss conference champion, if that happens, I would have to honestly say that I wouldn't be surprised at all if the SEC doesn't have a team make it in. This year, just has an odd feel to it. I really don't see Oregon getting beaten down the stretch, their defense is much improved, and that with their offense is going to probably pave the way for them to be undefeated. In the Big 12 one could easily argue that Texas or West Virginia could go undefeated. Who can really stop Geno Smith at this point? Texas meanwhile is playing good, and in fact just beat Mississippi far worse in Oxford then Alabama did at home. These things won't be talked about now, but I can guarantee you they will if the time comes. Florida State going undefeated could have a similar resume to Alabama's, but they are looking very impressive in each and every one of their games and I don't see anyone beating them.
So, I guess time will tell, usually we go down the year and most of these teams fall away, but this year it just looks like there's a serious possibility of BChaoS at the end of the year.