I'll have to re-read the accounts of deeds like the Combat of the Thirty, but from what I remember, they didn't sound like the BotN brawls. But yes, people like Froissart have written accounts of actual battles and tournaments, so we do have an idea of what real medieval combat was like.
I just find it amusing that people constantly call out Clements for not being knightly or chivalrous or this or that and hurling all kinds of insults his way. Is that knightly, or chivalrous to do? Pot, this is kettle.... Besides, why does Clements have to be knightly or chivalrous? Is he claiming to be a Knight? No, he's a martial arts teacher and historical researcher, and he's damn good at it.
Whether you like him or not, he's done more to bring HEMA/WMA to the public's mind than anyone, if just by virtue of him being on TV all the time unlike any of the other's mentioned. People like Dr. Sydney Anglo don't back ARMA because it's a den of iniquity like so many pretend. I have the utmost respect for all of the gentlemen mentioned in this thread, but I also have a tremendous amount of respect for John Clements and I find it tiresome that people constantly feel the need to go out of their way to bash him, when a lot of people probably wouldn't have ever even gotten the spark to be interested in HEMA/WMA if it wasn't for his efforts in the first place, be it directly as some in this thread have accounted, or indirectly by him getting the word out.
In fact, you can even take it a step further and be thankful that he comes off so abrasive sometimes, because it sparks actual discussion on technique. And that is useful! If people are just constantly avoiding conflict, you wind up with stagnation. I'm willing to be his thoughts on the krumphau alone have caused hundreds of other HEMA organizations to at least scrutinize what they were doing and really think it through, and we need that kind of thought in the art.