The Coaches would use stats, they do it in Wrestling. You want some guy 150 miles away determining seeding depending solely on stats? That's not any better than the system that's in place now(ping pong balls.)
It's usually pretty obvious who should be seeded where by the coaches who actually know their teams. I'm guessing for football, Sectional seeding could be done in an hour or less in a conference call by the Coaches of the teams in the Sectional. After that level, seeding isn't really needed for Regionals, SS or State.