I would imagine geographics have something to do with scheduling, along with working around officials' schedules in other conferences. And that comparison to coaches moving up isn't really a good one. Not many SWAC coaches have truly taken the proverbial "next step" in their careers.
As for consistency, again, I disagree. Officials try to manage the game. If the gameplay dictates that whistles need to be blown, they blow the whistles. I still stand by what I say. Most of these complaints are from people who don't TRULY have an understanding of the rulebook, and just know them at the most basic, streetball levels.