Well maybe so Gabe, who knows.
By the way, the guy has two people hanging so has to raise both of them plus friction. Fuhgettaboutit.
The totally jammed autolocking belay device (with two people on a single rope hanging off it) is a plausible scenario. Next time use a Munter, Sparky.
I'm not a fan of autolocking belay devices, so perhaps should not comment, but using such a device when someone might be hanging free in space seems like a bad idea. If you insist, you ought to be damn sure you can unlock the thing when it is fully loaded, and your second ought to be damn sure they know how to prussik when it turns out you can't unlock the loaded device---in spite of being damn sure.
Oh and Rob, forcing yourself to read threads that make you nauseous is bad for your esophogus. Best to retreat to a judgement-free zone rather than judging those you accuse of judging.