Orbit or center of mass?

Ok, so here's a noobie jodo question that keeps cropping up in my practice.  In most of the weapons arts that I've practiced or studied, in order to improve your likelihood of hitting, when doing a thrust, you target the center of mass of the torso - basically the solar plexus.
But the jodo guys seem to be obsessed with targeting the bridge of the nose or the orbit of an eye - a much, much easier target to miss.
What's going on here?

Patrick Parker 

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