In real life, "winning" 10-7 isn't all that much of a win. More to the point, "a touch" doesn't cause a position reset and some touches are far more important than others.
Fencing is amazing, but it isn't fighting even if fencers do better at sword fighting than folks with no experience.
I had an in-depth reply to this, but I accidentally closed the browser tab in the middle of composing it. So I'll leave it at this for now: historical accounts of the duration of sword duels do not distribute themselves qualitatively differently from modern fencing, and even less so from the fencing of 100 years ago.
Fencing is amazing, but it isn't fighting even if fencers do better at sword fighting than folks with no experience.