Nice vid and I like the grandpa wisdom.
However I dont like stationary archery. That's completely unnatural, just like Olympic fencing vs HEMA. If we are talking about HEMA archery we need to talk about skirmishing, i.e firing on the move and taking in battlefield condition.
This guy is a good example. Fucker split an arrow in two MID-FLIGHT! Granted it's low speed, but hey.
Firing on the move (skirmishing), fast firing multiple arrows, firing over a shieldwall, picking up arrows and return fire... all of this are very important to period skirmisher (which was what archers were).
I think in Europe people got obsessed too much with the longbow, which to me is some form of (very) light medieval artillery or static firing line. So people forget that combat archery actually involves a lot of different ranges. Skirmishing range could be anywhere from 10m - 50m, and speed and accuracy is much more important than strength and draw weight at that distance.
If you are a viking supporting your shieldwall, you need to be able to fire over the shieldwall quickly and accurately at targets, or move fast to outflank and let loose at the enemy. Since resupplying is a problem, picking up arrow and returning fire are essential skill.
Archers have a lot of advantage in broken terrain like forest and hills, hence Robin Hood and companies. Feudal lords often have to hire professional hunter / foresters to protect their forest against poachers and sometimes even hunt them down. Men at arms with mails or even plated knights would get massacred in such a terrain. Oh, and then there's Agincourt but that's more due to the French being stubborn arrogant assholes rather than archery superiority.
Horseback archery deserves a separate thread. That's how the Huns and then the Mongols conquered the world...
@archer: agree that we will probably never know how things were done at some period in history. Take my home country for ex. Vietnam is famous for being the only country who successfully repelled the Mongol invasion (where both China and Europe fail) as well as constant Chinese aggression. It is considered one of the most militaristic society in ancient Asia, even more so than China. Yet we have ZERO info about weapons, armors and combat tactics pre 1000 BC. Damn shame....