I'm generally against any form of regulation, but as long as we live in a society where drug laws already don't make sense, regulating the headshop CBD industry is going to do good things.
The industry around cannabidiol is disgusting, particularly when it comes to products sold outside of states with medical or recreational marijuana. Outside of your average stoner looking for holistic medicine, a great deal of people interested in CBD are cancer patients or family of cancer patients. At best, these companies are making money selling snake oil to dying people. At worst, they're introducing dangerous toxic chemicals to immunocompromised individuals and actively harming them.
I can't find the article but there was news a few years ago about a head chemist stepping down from one of the largest (at the time) legal producers of CBD. She wrote an exposé about how their leadership was pushing for higher purity at the cost of safety, and how it forced her to resign.