While I do think it's a bit off an over reaction because of a faulty o-ring, I do get the sentiment...there are plenty of people who just vape and are lost with the tinniest error of the device....put some spare parts in the package with some instructions on common wear and tear issues that might develop and bingo...it's that more user friendly.
I wonder why more companies don't take a page out of the Kanger Subtank book on this one. Put in some extra o-rings, perhaps a screw or 2 and an extra glass...costs them nothing and makes the package that more attractive.