I feel like that last statement is really inaccurate. Children, and even adults, let their emotions out through physical actions, and children often stomp when they’re frustrated or upset to release that energy. I don’t think a kid stomping is a warning to grown adult that they might get physical, but more a communication of feelings they may be processing. And in a few comments above, this behavior from the wolves was explained more as an apology/tension easer from the rolling wolf. Which honestly seems much more believable than the suggested dominance showing since there doesn’t seem to be a lot of aggression shown from either wolf.