Maybe to people who don’t know anything about smoking. Some substances are less addictive than others to smoke thus theres less compulsion to put smoke into your lungs constantly. Dry herb vaporization smoke is also absolutely measurably safer than traditional combustion smoke as its far less hot and no ash, carbon tar, burned fuel byproducts from lighter or wick, none of that is getting in the smoke only the low vapor point plant oils and terpenes you actually want in there. Thus making it much cleaner and less full of carcinogens. You can really feel the difference on the lungs. Also the smell isn’t nearly as bad either almost unnoticable which is a win for non-smokers in the area.
The idea that a chain smoker who goes through 2 packs a day will suffer the exact same degree of health issues as someone who vaporizes half a gram of weed once or twice a day is silly.