Seeing as I'm lying around in a sauna with nothing to do, here are a couple of further thoughts on why this sucks.
1) the execution straight up blows. Put a proper pull strap on it, for Christ's sake. And do something about the whole "gang raped by webbing" look or someone is going to hang himself in it.
2) okay, you jump out of planes (and you need something to hold your rifle that isn't a sling, but you need access to the gun the second you hit the ground. But you don't need a chest rig full of mags. Also the chute rigging isn't a problem. And this thing is at least as secure as a sling or strapping it to your bag).
Now you're on the ground and your gun is immediately in use. But mags aren't an issue. But you still have no sling! So either you can fight it out with one mag and run somewhere and attach a sling or you can just live with the gun in your hands. Also, gun grabs are not an issue in this country.
3) you're a dog handler. But a two-point adjustable sling doesn't work for you because counting to two eats up your dynamic maneuvering time. So your dog gets to the guy you're hunting and you have to go hands on to restrain either the dog or the guy for whatever reason. But you are carrying a rifle that is automatically on your chest, which you can't sling, and which pops off if you yank on the dangling thing front and center on your chest.
Nope, no red flags here