When I was in high school there was a gas station on the edge of town that was very relaxed about the legal age for purchasing cigarettes. But I never blamed Camel for that. ;)
Maybe the Buckyballs guys will say, "hey my hands were tied, I couldn't do that level of due diligence with every store I sell my product to." And the regulator will respond, "hey my hands were tied, I couldn't allow the product to be sold without that level of diligence."
That doesn't mean that regulator is somehow being unfair to Buckyballs. It means the laws of physics are being unfair to Buckyballs for not allowing them to create a cool sticky product without health risks to children.
Yes, there's a certain amount of proportion that needs to be taken. Yes, more kids die from drowning in backyard pools. But it's not unreasonable to ask that these products (like cigarettes, like prescription drugs) are more difficult for children to acquire at retail.