You don't have to like the law. Just, follow it. If you don't like it, then do something about changing it. The last thing we need is a headline like "Gun-toting Louisiana Man Openly Ignores ATF Regulations, Posts Videos on Youtube, Gets Arrested".
You are confusing regulations with a law. The ATF issued an "opinion. An "opinion" is not law. It is used in law, but is not in itself a law.