Insane machete fight from Dominican Republic

I have a theory that most attacks with either long blunt or bladed weapons will be delivered in a horizontal angle at shoulder height, as it is the most natural height to swing at full speed at an opponent. This theory is based on watching persons with no martial arts training doing that consistently, even if they have received a week of intensive training. What really got me started on watching for it was seeing a show from BBC, called Last Woman Standing that was a female version of Last Man Standing, the competitors were athletes from various sports and competed against local tribes in their traditional sport, which could be wrestling against a small tribe in the Amazon at the annual wrestling competition, all the challenges were hardcore, but one of them was stick fighting in the Philippines against professional military women soldiers who had trained Pekiti Tirsia Kali for many years, they actually did win the fights and they did it not by using what they had been taught, but by swinging full speed and power horizontally, as the adrenaline rush and fear kicked in and they didn’t expect that they should fight each other in a full contact stick fighting tournament. So I started to look if that was a common attack, and so far I am right when it is not trained persons, so that has changed my priority to what attack to learn how to deal with first, the horizontal caveman swings.