IMO lowering the minimum to 2 Points for a school to remain in a higher class should be passed & go into effect immediately.
Best current example is Marquette boys basketball. 4 years ago, they earned 6+ Points & moved up from 1A to 2A. In the next 2-year cycle, they won 2 Sectional & 1 Regional for 3 Points which kept them in 2A. In the most recent 2-year cycle, they won 2 Sectionals for 2 Points. If they do not change the rule, Marquette will drop back into 1A. Any school who wins 4 (or 2) straight Sectionals is certainly competitive enough & should remain in that higher class.