It's not the very bottom. Let's say you're in survivor spawn facing where zombies come from on the map. You cross the bridge, it's possible to rocket jump / sticky jump up and over the wall that is then on your left, use the base jumper and float down onto some kind of (invisible?) spot down there before the kill zone, above the asteroid looking object.
It'd be one thing if he was just doing that, I wouldn't care too much and I do agree the underlying issue resolution would be the best approach. However, he knew what he was doing when he grabbed the intel before doing this, and despite warnings from other players he continued to make the objective unreachable for survivors, and continued to exploit this situation in the map, so I still believe it calls for punishment. If he didn't touch the intel at all, I wouldn't call for punishment.