That didn't sound right, so I chased it down with U.S. Cavalry's PR guy, who told me she was mistaken, it was a requirement imposed by CamelBak, whose PR guy elected not to reply.
Funny thing: I noted Botach Tactical had no such requirement yesterday, but someone scrambled and added the caveat.
So I guess the bottom line is, CamelBak doesn't trust you with a backpack. Me, I'd remember that when they offer to trade what they do trust us with for dollars.
Stupid name for one anyway: "Urban Assault Concealment Pack."
Unless they're going to deploy it like Ruth Buzzi.