You can choke somebody out in 13 seconds.
I would've knocked her unconscious, bound her, and then went on my merry way. Black ops team isn't going to make it obvious on their exfil which way they went.
Blackops have different rules though. I think that if american and german soldiers were executing each other during the battle of the bulge because they didn't want to let them go and re-strengthen the enemy, nor hold them with the enemy attacking, that a blackops team in enemy territory would have to be considering just offing her.
If she did wake up and see which direction they went it would probably not make much difference. Once line of sight is broken in the woods, unless you have a professional tracker or some shit, it doesn't really matter. Dutch's team could've walked in a running creek for 40 meters and you would have no idea where they popped out at.