That's not a good enough reason to not have anti-vape commercials. Just because it's "less bad" than analog cigarettes doesn't mean we shouldn't speak out about their negative effects.
We should, when they don't present their reasoning. Or when we know they're being financially influenced by "Big Tobacco". Tobacco laws are being driven by religious puritans who hate the idea that someone is enjoying a drug. To them, that's cheating at life by being happy before judgement day. They'll grasp at any straw to advance their agenda of control, even if it means cooperating with "scientists" from tobacco companies.
We should immediately reject all governmental proposals that aren't backed up by rigorous science. Not only would this stop a ton of abuse, but we'd save a fortune in tax money that could then be spent on initiatives that actually save lives.