I dont understand this logic. They can claim the SEC will win every bowl, but if they go out there and lose every bowl it hurts the league's image, just like winning every bowl would only enhance the reputation. My point is that what actually happens on the field matters more than what some "analysts" say. The SEC winning the past 5(6 this year) national championships is why ESPN hypes up the league so much.
It's actually pretty simple logic. By pimping each and every SEC bowl 24/7, they get eyeballs to the games. They don't care as much if the SEC wins every game because they've already gotten paid via the TV ratings - although to continue to keep the brand viable, it behooves them to have the SEC win every game.
Further, by continually pumping sunshine about the SEC on their stations, it keeps the SEC as a desired destination fresh in the minds of all prospects, which essentially acts as a recruiting tool for the conference. You cannot deny that Bristol has a vested interest in the continued supremacy of the SEC.