mole
from my understanding
if the hunter had crouched down then the deer would of taken the more usual root of facing up before charging in with a clash of antlers , but instead he stood up which prevoked the deer into a boxing match, which then confused the deer when he fell over, so stamping prevailed , at no point did the hunter present himself as a worthy apponent where antrlers were nesseccary .
hope this makes it a bit more clearer
stone