If you've read some of my other posts, I'm always the first to point out the difficulty of playing in the SEC. As a matter of fact, the SEC champ should be the first one-loss team considered for the MNC -if it comes down to a one-loss team.
Hypothetically, if the polls were done from scratch each week, a definite case could be made for a one-loss TN team being ahead of a one-loss TX team. I might even make that case myself. However, as it is, TX is ranked higher and won two close games. TN is ranked lower and won two close games. Tech and NU are at least good enough to keep a team where it is close loss or not.
I think the built-in advantage (fair or not) is that we're returning NCs and Tn is returning from a 5-6 season. TN is still regaining its rep from last year. By the end of this season when TN is 12-1, they'll get the benefit in future polls just like TX does at the moment.