E-cigs don't catch fire nor do they explode. The batteries inside them can, though... Occasionally a laptop has a battery fire. Occasionally a cell phone has a battery fire. Occasionally a flashlight has a battery fire. Occasionally an E-bike has a battery fire. Occasionally, an automobile has a battery fire. Occasionally, a Segway has a battery fire. Apparently a bunch of hoverboards have battery fires... It's the batteries, not the devices.
Had vapers and organizations that promote vaping (Yup, including dear old ECF... and, in fact, specifically ECF, but also 'understandably' ECF) initially taken a clear position endorsing the truth of batteries being what actually is unstable and not the devices that use batteries, the media today wouldn't go so stupidly insane when a battery in an e-cig has a thermal runaway. Effort needs to be put in to expressing the truth of the matter whenever such an incident occurs.
Indeed, there are steps users need to take and there is information users should have... but in all actuality, it remains that batteries can be dangerous in a laptop, a cell phone, a flashlight, a hoverboard, a flying drone, an automobile, and an e-cig.