My thoughts are this:
Bama has lost twice, one in two different seasons. Yet, in both of those two seasons they went on to win the NC. One was in the BCS era and the other the playoff era. Therefore, the committee seems correct allowing them in.
I am curious if they would do that again if Ga beats LSU in the SECG and allows them in over LSU. Or, if they would allow all three and undefeated Clemson. Would three SEC one loss teams be in over one loss OK, Penn St., Minnesota, etc. The SEC used to carry a lot of weight.