Would it kill these scientists to have a experienced vaper with advanced knowledge on hand to offer advice and to set up the devices and taste them to make sure the usage is within acceptable parameters?
The carcinogens they are referring to are both products of combustion, under normal circumstances that just doesn't happen, the second combustion happens the flavor changes, it becomes intolerable, when that happens people either throw out their single use coil or clean and re-wick their coil....
Another thing is is that there are temperature control devices these days that can completely eliminate the possibility of the coil reaching combustion temperature for all elements of the device or liquid, for those devices when set up properly this study is completely useless, for actual vapers this study is completely useless....
This study does not apply to real world conditions and the data only reflects what would happen in a laboratory when more than acceptable power is applied to vapor products....
Let's pretend the study was about 1.5 volt rechargeable batteries, they charge the battery to 1.5 volts, nothing happens, next test they charge the battery to 1000 volts and the battery overheats and all sorts of toxic chemicals are produced....