He compared it to DNA style boards - well, this isn't that board. The whole review was more focused around this Feature-as-warning than an actual review. I do not think he actually read the manual. His review was slanted towards people coming, as you stated and as did he, from a DNA-style board. But it is not that board.
Will people switch it on because they think it's something else and because they didn't take 10 seconds to read small user manual: yes. That is user error, not a fault of the device.
Even if it's not, people relate things. That's how a lot of non-hobbyist vapors learn. Hell, that's how most people learn. And then they read the manual. So, slanted or not, your statements imply that he did indeed mention it as a feature and not a defect which satisfies your need for truism. At the same time, he also gave the perspective of, "Hey, this might catch you off-guard as its not like the mods you may be used to" which is also valid.
Additionally, every other PV I've owned that had this feature had a safety cut off which prevents if from firing while an atty is in place as opposed to when the connector is on. Also, a friend has the same device and did not experience the thing firing with the atty on in mobile mode until you shut it off. So, in my opinion, this is a less than the best design. Having said that, I should probably also mention it was not the only reason I asked for a replacement.