The problem with that approach is the debate tends to be led by football parents who want to make sure there’s ample time for the kids to beat each other senseless on the field. Literally, that’s the argument we got in Fairfax County when similar proposals were floated.
This sounds like a vast over simplification and plain scapegoating. All the school start time surveys I've seen typically have an even split up to moderately favoring normal start times. Half the school is not on the football team.