The entire argument for extended OT, or a touchdown is needed, or one possession for each team is predicated on the idea of fairness, and equality. I'm sorry, but life's not fair. If you lose an OT game it wasn't because you lost a coin toss. Why didn't you win in regulation? Why didn't you prevent them from getting into field goal range? Next points win is the most dramatic method for ending a sorting event, and the fact that it's not all "fair" elevates the drama.