"Never in anger" is one slogan of reenactment that is worth bearing in mind. Point is that the game is all about control. People have to go to work on Monday mornings. You have to learn the skills before you go full on IF the other party is in agreement. No place in reenactment for bullies hammering down a weaker opponent. Plenty of opportunities in things like the "Circle of Treachery" for being sneaky though. But we are swinging, albeit blunt, real steel about so you do need a fair bit of nerve.
The videos show rather silly combats, grappling is not normally allowed for example in the UK and one wonders what actually they are trying to show.
doesn't look particularly accurate to me too much showboating and sword twirling. no real knight would parry edge to edge either
http://www.thearma.org/essays/edgemyth.htm
http://www.thearma.org/essays/damagededge.htm
Who said it had to be accurate?