I suspect this is the reason:If the substance being discussed is maiming and killing indiscriminately, why has it not be completely banned from use? We know the answer - and so does HHS - but the same government sponsoring this modern-day Elephant Man sideshow is hopelessly, er, addicted to the taxes generated by smoking.
If the gubment ever had to give up their addiction to cigarette taxes cold turkey, they couldn't do it.
Because the Gov' has created whole offices dedicated to this cause.
They still need tax revenues to pay these wages even though what they do is completely useless.