"Prescription opioids ... are the most dangerous drugs abused in America"
That's patently untrue. Alcohol is far more harmful, as is smoking. Their opiate death counts probably also include deaths from combinations of drugs. And, the antidote for opiate overdose (Naloxone) is difficult to obtain.
The article goes onto say that painkillers are "overprescribed". What does that even mean? Sounds like they're simply disagreeing with somebody else's choice to use opiates. Which is thing they're arguing against with pot.
The article further spins Zohydro as some terrible thing, when it's really just the removal of a denaturing agent from hydrocodone tablets. But the article states it as "ten times stronger than OxyContin", which is a nonsensical fabrication.