I don't see much in there that is relevant to vaping in general being unsafe. The main concerns seem to be related to non-nicotine contents of the liquids being used. While that is certainly an issue to keep in mind when talking about current vape usage, it should be something that is addressable without getting rid of vaping altogether. The only concern specific to nicotine seems to be the possibility of spills leading to overdoses. I suspect this is minor enough to ignore entirely, but if not then better education and even product design can be used to address this.

Otherwise the section referenced said nicotine does not seem to be a carcinogen but some people suspect it may be a tumor promoter. If we're drawing the line at "suspected to be involved in cancer somehow but doesn't cause it" then we're going to have to rework most of society and then some.

The only other thing that stood out was the particulates issue, though they didn't mention any health effects of being exposed to the particulates and I don't have that knowledge off-hand.