I thought I was clear on my point, but I suppose not. I will try to clarify again.
In the beginning of the thread, I said that I do not necessarily think the regulations should be the same as cigarettes. In other words, I am not sure if I agree with the regulations that are described in the article. I bring this up because you said "the regulation in the OP has nothing to do..." in a manner that implies to me that you think I am discussing those regulations. I am not.
However, several people have said they want no regulation, which to me seems extreme. That would make the regulation of liquid nicotine less than that of other drugs like caffeine, ibuprofen and aspirin.
I find your wine example to be strange, as wine and alcoholic drinks in general are heavily regulated, just not by the FDA. For wine specifically, see: https://www.ttb.gov/wine/index.shtml
To your question, which is why do I think think these vials should be regulated the same as existing drugs? Because it is a drug, and I think the FDA should regulate all drugs. Drug safety is generally not a problem because of regulation. I also linked to a NYT article which shows that there are problems where children handle the liquid nicotine and get very sick. Liquid nicotine is toxic, which some people don't realize. And it is a problem with "supplements" which the FDA is not allowed to regulate. So, three questions. One, do you support the FDA regulating drugs like aspirin and ibuprofen? Two, if you do, why do you want to treat nicotine differently? Third, are you ideologically opposed to all food and drug regulation?
I ask the third question because if you are ideologically opposed to all food and drug regulation, then there's no point in discussing the particulars of regulating nicotine.