Everyone here has valid points. The one game thing is a total crapshoot, there's no doubt about it. On the flip side, the travel is absolutely atrocious for some substate games. Say last year (before reclassification) you could have had a substate matchup of Lookout Valley at Cloudland. Travel for a 3 game series would either require ridiculous amounts of milage, or Lookout Valley having to to put up 20 kids (and parents/family members/fans) in a hotel somewhere.
The only "fair" way to deal with that would be a centralized location, and have a sectional tournament between the top 2 finishers in each region, like they did in basketball in the 90s. Of course, that takes away the home field advantage for winning your own Region, which I absolutely love.
There's no real good way around it.