Actually, this is a pretty good idea from a researcher's perspective. Dr Eissenberg's first study was criticized for instructing users to use an
ecig differently from the manner in which an experienced user would. For him or PT or anyone else to invite experienced users into a lab-setting and demonstrate would be a step in the right direction, but runs afoul of the eternal problem: volunteers who know they're being observed, and what they're being observed for, may not act naturally in a lab setting. Especially if they have something to prove (such as that their well-loved but as-yet-untested gadget actually works).
It would be much better to test the critics' claim (that ecigs work when used properly with long, deep inhalations and not as Dr E instructed) by observing experienced users 'in the wild' when they don't know they're being watched, their techniques closely observed, and inhalations timed. Despite what people may think, research grants can be very hard work to secure (even for those with tenure) and watching users on YouTube is infinitely cheaper than seeking users out in public and spying on them.