Call it Highlander syndrome...there can be only one. Or at least, one per level/gender/age group per year.
You can have two absolutely fantastic teams, evenly matched, evenly skilled, evenly coached, evenly developed, evenly conditioned...regardless, due to fate, chance, momentary distraction, injury, unforeseen circumstance, intangible variables, or just plain inescapable math, one of them will NOT come home as champions. Not sure that constitutes cause to question the system that fields that team.