Coach D, Someone can correct me if I am wrong, but I think that is the old way of seeding teams for state playoffs. (but I heard rumors that some regions had a different format for determining how to determine seedings within their region)
In our region, last year it was done on region records. (with only games within our region counting) The top 4 got births in state tourney and were ranked 1,2,3 and 4 within their region. The teams were then placed in the bracket accordingly. This bracket was posted on SCHSL website months in advance of playoffs. I believe you could have won your aaaa region and lost all your other games and still had home field advantage the first two rounds. The first round was a #1 v a #4 and second round pitted winner of that against a #2 v #3 winner. Assuming all #1 were left after two rounds, the bracket indicated which one got the home field (regardless of W/L records or points).
Not sure if they are doing differently this year or not. Perhaps a coach would know.