Way late to the party on this one, but this always drove me nuts too. I do like that reasoning, though.
What I personally did was basically give it the same Availability as Bone Density all across the board if you want to get it in game. Yeah, it increased the lesser and decreased the greater but it works pretty nicely. What I did was make it Restricted instead, solely because it added armor. Basically, since some body armor is ideally licensed, I decided making it able to be licensed was a fair trade for the extra armor bonus you get from it. Prices are otherwise the same.
So people can choose between A. Less invasive, more expensive, but no armor bonus but essentially non detectable, or B. Cheaper, more invasive, detectable a bit easier, but you get a little natural armor bonus to carry around with you, but you need to scrounge a license for it.
But yeah, this is one that me and my buddies have discussed awhile, as it ALWAYS stuck out as being a little off.