Why would this be the only instance of this behavior? I would call it 'over-reach'. Having done this exact exploit on a wide variety of targets fruitfully, in

Why would this be the only instance of this behavior? I would call it 'over-reach'. Having done this exact exploit on a wide variety of targets fruitfully, in this case they reach too far and try to get a channel that's unlikely to respond positively. Over-ambition. Or, 'they already got everybody get-able, and had to keep going into more dangerous territory, with entirely predictable results'.