It is called for and is substantiated. Should the guy get prosecuted over it? Probably not although a precedent is moving towards pushing and or telling someone to kill them selves constitutes some kind of criminal liability at least in the states.

Drug overdoses are so often a method of suicide it is almost laughable to use that as an argument to defend assholery. Some people are psychopaths and Kramnit screams like one. Zero empathy remorse or event the slightest drop of compassion.