Headshot are most stupid thing you can do if you shoot over 500 yards with .30 calibre rifles and way too risky than a well placed shot near heart and lungs. Deer Stalking certificate 1 told me to never go for the head at long range hunting.
I've be doing this for a very long time and had to deal with too many injured dear through attempted head shots, the misrepresentation that you somehow gain from higher carcase value is typical of those who shoot few deer, the simple logic is that there are many chances for a shot and so more deer in the larder with chest shots. And all videos like this serve to do is to further encourage inexperienced shooters to attempt head shots... and so even more injured deer for our group to deal with along with the explanations to the public and press that come with it.