The physics of Draymonds stomp doesn't even make sense if he claims he has to put his foot somewhere. He lost his balance for a split second, clearly regains his balance, raises his foot and comes back down hard on the chest of Sabonis. There is no accident or a need of placing a foot somewhere. If you're pulling your leg free, you're going to accelerate your leg upwards in a yanking motion, not accelerating downwards in a stomping one.
Additionally, when I've ever tripped I've always pushed my leg out in front of me because my momentum carries me forward, not a foot in front of me and down. But Draymond clearly wasn't even off balance balance for more than a second, regains it, looks down at where Sabonis is and stomps where he is looking. Most normal people, if they saw someone below them, would try to avoid them. Draymond claimed in his interview that he is not flexible enough to put his leg out far. which is BS. The distance he would need to put his foot beyond Sabonis was barely more than a normal walking stride for him.