Ah, now I think I see what has me confused. My problem is that the dimensions of Kaedan versus those of the legionnaire don't match up well enough for that to actually be possible. Not only is Kaedan - if my estimate is not wrong, with it having been emphasized how big a man Kaedan is - quite a bit taller than the legionnaire, but also quite a bit wider across the shoulders and chest. In other words, there's no part of the legionnaire actually sticking out far enough to trap the blade against.