Yes, that guy was truly a hero. You know, even in France there are some brave people
Actually that "white flag" reputation comes from the second world war, when France was defeated in only 3 weeks. France surrendered, but at that point the war was already lost. Most of our troops were encircled by the germans and were defeated by lack of supply. What was left couldn't stop them. We were also attacked by Italy in the end, even if they didn't prove to be a valuable opponent.
Actually the main problem came from the very old and unskilled generals that allowed the german encirclement maneuver, with bad troops positionning etc... The frenches actually fought, but they were doomed because of a critical strategic flaw.
And if you think about it, the english army didn't do better at that time. What saved them is their insularity and their navy. Even the russians suffered a lot before turning the fate of battle.