It's about the cumply behavior that the soldier has after he landed.
You are absolutly right that you are towed to the parachute and if it's windy you stumble.

But this is not the problem at all. It's about the situation AFTER the landing.
Seems that the soldier don't know "what to do first".

I will update my report as soon as I get home, maybe and video will do it too, thanks for the hint.