Huh? Idk what you're getting at, as the code exists right now you can track someone using a paraglider from the ground because all of their movements are reported the same way an aero's would be. If this change were implemented you could keep up with them if they tried to escape to an open area, it'd just make things more interesting than them falling in a straight line. I don't think sniper play would be affected beyond additional escape routes and just jumping off the rooftop in a random direction would probably accomplish the same thing.
I was thinking of this more in terms of having a better chance at leaving taller structures alive though.
Knowing the lay of the land is a key to finding a escape route, and if your plan is to just to jump off something then slowly sail to the bottom - your plan is flawed.
"Knowing the lay of the land," only applies in certain places and in others you usually have to choose between an elevator or a jump, but it's not like that was the point of this thread either.