I thought that particular video was his engine siezing not a tankslaper (although it lead to one)?
Although agreed, a tankslapper can’t happen in a car. It’s the bike equivalent of an out of control Scandinavian flick, steering goes left, weight pushes straight on, bike falls right, steering swings right, weight goes foreward/left, steering flops over, etc. The closest thing in a car is overreacting to a skid, and skidding the other way, then again, and again, but the difference is it’s the driver doing it, on a bike it’s out of control.