The SS fumble on the 5 yd line was huge for Maryville. But don't forget that the Maryville fumble on the 5 yd line, before the half, was just as huge for SS. In both cases the offense was about to score. So basically the two fumbles cancel each other out. You take the fumbles away and the margin of victory is still the same. It would have been 55-28 instead of 48-21.