Going by what some SEC football rules experts are saying, the Alabama Crimson Tide has a very good chance to advance to Atlanta with a 7-1 SEC record. I also reviewed the SEC's tie-breaker rules pages. I don't advise anyone to do so. The few pages are more inscrutable than reading 600 pages plus of Moby Dick.
It appears likely that Alabama only needs to beat Oklahoma or Auburn to advance to the SEC Championship Game. Some Alabama fans suggest the game would be an unneeded risk to Alabama's playoff chances. I don't believe the concern is valid, but even if it is, SEC Championships should still matter.