Actually, there's a reason for it. Basically two teams dominate the SEC, and by extension the BCS championship. Adding the two Big 12 powers is going to turn the SEC into a slaughterhouse during the regular season and give other conferences a shot. Plus, no team added to the SEC gets access via exposure to recruiting pipelines it doesn't already have
Excepting the ACC, which will inevitably get the scraps, the other conferences got a lot of good up and coming programs. The proposed PAC-16, because of the addition of most of the Big 12 schools actually gives the PAC-12 schools access to some fairly strong HS football traditions and the former Big 12 schools will get to tap California. That will inevitably turn the PAC-16 into a very competitive conference.
And I don't know why you're complaining anyway, shaping the PAC-16 as I did turns them into THE basketball powerhouse.