It's not so straightforward, especially when you have never-ending clogs. I have seen a gorge survive up there for quite some time, even with a third of the marine team obsessed with trying to take it down.
At least marines can access vents if they have good teamwork. What about completely inaccessible places, like that ledge in Terminal in Docking? Is it fair play that a gorge can basically camp there the whole game (until GLs/jetpacks) and snipe a…