^This, same here. Since I am unable to watch the video (due to YT being stubborn), I'll just give my thoughts on electrocution. In short, I don't think it is likely to be successful due to the fact that the voltage isn't strong enough and will likely just result in injuries and the power going out well before death. The reason that the electric chair and other electrocutions are successful (but not without lots of suffering and pain) is the fact that execution via the electric chair is using lots of voltage and current going through the condemned. Plus, people who are in the electric chair have a natural sponge along with a shaved head, which allows electricity to go through their bodies more effectively.
As far as electrocution via power lines, it is likely to be successful, but very painful during the electrocution as your body is cooking from within and electrical current surging through your entire body.