Alright, now that I've had a chance to sit down and collect my thoughts, I do have a question.

How did Vos avoid all the damage from the kick? Sev has more than eighty pounds on the man, most of it muscle, and what little momentum he could muster in a two-inch stabbing motion wouldn't slow a full-force front-kick down very much at all. especially with such a large strength (and size) discrepancy between the opponents. Not to mention that Vos wouldn't know the armor could withstand his dagger, and was clearly expecting it to punch through. He'd have to be initiating the withdrawing motion before the dagger even hit the alloy in the boot in order to get it out from in front of his stomach in time (since he'd be pushing forward then have to switch to pulling back, while Sev's kick is just one massive forward chunk of momentum). 

My point being that moving the dagger to stab his foot was the only counter you had time for. There's no room for anything else before the kick lands, not even pulling the dagger out of the way (even at the speeds Vos can move, since Sev can equal if not surpass those speeds.