As for whether e-cigarettes are really less harmful than regular cigarettes and can help smokers quit, it depends on who you ask.
It certainly depends on who you ask. The rest of Planet Earth acknowledges that vaping is not as safe as not-vaping, but it’s 95% safer than cigarettes.
Articles like yours, and the approach of the CDC and FDA, are more likely than not to funnel people back into smoking cigarettes out of scare tactics and nebulous moral equivalency, which will literally kill people while driving up Phillip Morris profits.