Knowing how to react and actually doing it in fractions of a second are two different things. By the time it blows and drops and the brain realizes to react it could be too late. That guy was off the road and in the dirt on the blown rim before he could understand what was taking place. The wheel acted as a rudder in the water on a boat.
But it does look in comparison like he was moving pretty good ( just guessing of course). More speed carried in a situation like that certainly can add to the problem as more forces are applied to the wheel digging a trench in the dirt. Think about it, if he was going 5 mph would it have flipped or lost control like that? I doubt it.
But as someone else here pointed out, after seeing that a Blue Ox Tru center is probably in our future. Been wanting one anyways, but it should help keep control in a blow out.