There is every reason to put those products into the legal framework. The consequences of not doing so are the continuation of perpetuation of the black market all the way from growing the raw plant material they use to make the products through to the point of sale. We're seeing this even in municipal jurisdictions that are regulating cannabis dispensaries but have taken the step of banning edibles.
People want these products. Consumers want these products. Any time consumers demand a product, someone's going to rise to fill that demand.