Well you are now seeing a large group of specialists on the international scene encouraging others in the medical professions to let's say "Smarten Up" a bit about ecigs since these people look inside the bodies of patients many smokers as well as former smokers who have had some type of heart surgery required. These are also the people who are the first to look at the "Science" and not simply listen to garbola news reports on antifreeze found in ecigs or formalde who nonsense!
Now for the typical family doctor or GP(General Practioner) who is accustomed to prescribing pills that type of doctor would never bother unless being prompted by other then Big Pharma. When Obama passed the updated tobacco control act back when first in office the FDA was just beginning their investigation and actually detained shipments of ecigs from coming in China until a federal judge ruled that ecigs couldn't be labeled as medical devices. The FDA has since failed to come up with a working set of regulations except for the 18yrs. old age requirement.
The second link since you quoted the first is for the public comments. The second link at the bottom of that page is for the FDA's Open Dockets for Public Comment
with that link opening to the place to enter your name, email address, who you may be commenting for as another option, and the text box seen at Establishment of a Public Docket; Electronic Cigarettes and the Public Health Workshop
Once you arrive there you click on the open document folder link and then look under Primary Documents for the Comment Now button next to the 2014 document that is still open. There were two but one got closed up rather fast posted on 12/30 while the one still open was posted earlier on 12/2/14.
Another article you will find to be just about on the money is found at one of the review/vaping deals sites that also has a blog section that gives a good comparison of Vaping vs Smoking Costs
That came real close to where I was when first trying out the disposables and one brand's cig look alikes back in the fall of 2012. With the recent purchases I spent a bit more then intended but won't be running after anything else for some time other then spare coils or a new tank or two while the mod/battery dept.s are pretty well covered!