It was a part of the original text, thats why they created the category of SBR and SBS, to keep people from circumventing the pistol ban with super short rifles.
Then when the pistol part got deleted no one bothered to remove the bit that plugged a now non-existent loophole.
Originally, they did try to make handguns NFA items back in 1934. What, is she arguing from old drafts from before they dropped that part?
It was a part of the original text, thats why they created the category of SBR and SBS, to keep people from circumventing the pistol ban with super short rifles. Then when the pistol part got deleted no one bothered to remove the bit that plugged a now non-existent loophole.