It’s ham-handed metaphor time! Imagine a group of alien scientists has arrived at our galaxy and is eager to study our society, with a specific interest in our eating and drinking customs. The concept of warmed drinks is foreign to them, as they find all sensations of heat unpleasant and are typically damaged by things we’d consider to be just-more-than-warm. Stimulant use is similarly harmful to their systems. Hoping to kill two birds with one stone, they decide to study coffee.
Of course, "dripping" - dropping your homemade vaping mix directly onto heated coils - threw any this splitting hairs out the window. But common sense informed anyone they saw vaping for the first time that that massive cloud exhaled into the air couldn't be a "safer" thing.