I actually strongly disagree. All that the 4473 "true purchaser" requirement does is make sure that it functions as back door registration via NICS records and the FFL's bound book.I understand your contentions Chip but you, in effect, are asking me to prove a negative when forwarding the supposition of Straw Laws not having been proven to have protected a life. Seriously?
The OP was reaching for clarification, this whole discussion has segwayed into should the law even exist which is basically mute. Of all of the battles to fight where infringement is concerned, this one ranks right up there with tilting at windmills.
It functioning as registration was basically cited by the SCOTUS as the reason they upheld the BATFEs reading last year.