If we were to switch roles and assume that BYU was in a big conference, and several teams were attempting to join it, I would watch highlight videos of those teams, assuming that they weren't overly long. Admittedly, I am a college football junkie and I would be willing to watch just about anything related to college football in July. I admit that it would sting a bit if some of the highlights were against BYU, but it would be cool to see a compilation of several years worth of big moments for a program, especially one that I didn't know a whole lot about.
Plus, and this is probably the biggest positive, I don't think another team that we are competing with can produce anything close to what we can in that regard. Boise is the closest, and they have had bigger moments more recently, but they can't compare with our historic success. If other teams did the same thing, it would have to reflect well on BYU.