That kid is lucky as hell it did not shatter his spine, neck or come down in a arch under his helmet. This is why I watch upwards and try to get as far from the tree as humanly possible as soon as it starts creeping to fall.
The past month when im not busy I have been cutting up a HUGE red oak that fell last year and likely was dead for a decade. The trunk is over 42" across the center and 14 feet long until the first set of forks. over 3 cords of wood out of it so far split and stacked up and there is still minimum of another 3 left. All done using only saws and a pickup truck, I told the land owner a tractor is needed for the rest of the trunk, im not noodling 30 feet of rounds into 6ths to lift them into the truck.