So, you say that people in M&B do not kill because they are skillful, but because others make mistakes all the time?
Ask around. Many top players will be honest and answer the k/d bang for the buck is to be where it's good to be, when it's good to be. True duels are rare on the battlefield, and they won't pump your k/d alone. Skill is mostly
not doing errors in duels, the game is designed in a way that about anything can be done if we suppose the player is perfect and allways does exactly the best thing, given the current state of skill of the average cRPG player. The situations where this is not true are either involving ranged, crushthrough or great imbalances of stats (peasant vs lvl 30).
Reapy's video of various team deathmatch rounds when the game was not released long ago pretty much sums up this. People are dying because they make obvious errors. Now things have evolved and I think many current cRPG player would have gone rampage is they had back then the skill they have now. But the principle is still true.