No, they are just holding them wrong.
Don't try to blame this on Apple. Those vape pen are running Samsung firmware, those sailors must have accidentally activated 'incendiary grenade mode'.
Nah, they were made by Zorg Industries right alongside their (in)famous ZF-1 infantry weapon systems, complete with the little red button.
No, of course the OP is right, every similar vaping incident I've heard about was ultimately the result of ignorant and stupid people doing Tim Allen/'Tool Time' impersonations trying to "give it more *power*! ugh-ugh!" with their vaping gear.
Instead of throwing FDA regulations at the vaping industry to try to cripple it because it threatens 'big tobacco' and the taxes tobacco generates, the government should instead assist in bringing industry leaders together to set technical standards for the manufacture of vaping hardware, like fittings sizes, battery and compartment sizes, etc etc, to make it a lot of work to fit a too-powerful battery into a unit that fits a too-weak coil for that capacity battery and so on, the same general idea applied to the range of vaping hardware. Standard sizes and threadings of component parts in the various ratings/classes created in this way can be adopted industry-wide so that dangerously-incompatible components are a lot more trouble for some idiot to put together.
As usual, government's actions belie their actual priorities, and equally no surprise that the safety of regular people is way down the list.