>>213885983
Way I figured it was she didn't stab it, but got the meat hook around the mouth and twisted it so it was applying pressure in two different locations.

Also knocking over the shipping container when it was presumably at full sprint is different to wrenching free at a stop, since momentum carries for the former. The mouth could also be a sore point and it couldn't apply too much pressure; if someone shorter than you grabs you by the ear, you can't whip them around through the air by your ear just because you could do it with your arms.