Yes, we are. 1-2 pound(s)+ (dried flower) is very easily achievable outdoors from a single plant with most strains. 4 or 5 pounds+ dried product from a single plant is not unheard of. Cannabis can get extremely large.
(this is actually inconsequential to the point of the article I just wanted to point it out).
It's certainly very easy to stay under this limit if you're growing at home. It's difficult to cross that threshold accidentally, for sure.