I like this point because it is complete gibberish. If you simply do not mention the side effect that makes a drug lethal, it sounds a lot like the drug does not have lethal side effects. Obviously we cannot do that with acetaminophen though, we must talk about hepatoxicity when it comes to that drug.
On the one hand we have a drug that can cause both mental and physiological dependence and addiction (so what), has an admitted side effect that encourages some users to escalate their dosage beyond medical guidance (who cares), and can cause you to either stop breathing or aspirate and choke on your own vomit if you take too much (that part is a little tricky so we just proceed as if that is not the case)
On the other hand you have a drug that is hepatoxic at several multiples of its recommended dosage. Obviously the second one is more dangerous becau