"with an objective measure of who would have won in a real combat situation"
In a real combat situation, the people being struck would experience shock and degradation of fighting ability, which would have affected the points they'd go on to score. I would say this is more about who would have scored the most points in exactly this setting.
That's true and it's not going to be used in mma, kickboxing or anything like that. But sword and spear fights where the competitors don't get killed? That sounds like fun. What mma is to karate or boxing, this could be to fencing.
Without any details I'm going to assume this is all nonsense, but fun idea.
In a real combat situation, the people being struck would experience shock and degradation of fighting ability, which would have affected the points they'd go on to score. I would say this is more about who would have scored the most points in exactly this setting.