I find it highly amusing that all of these "sensational" reports are made by Fox... Basicly the swedish version of Aftonbladet.

They both work the same, hide the real cause and just spread fear mongering and propaganda. They will never explain why x or y happened. Just that "this is dangerous!!!" kind of a way.
It is quite well known that a mech shouldn't be operated with a unsafe battery and/or to be used within their safety range.
Sure failures can/could possibly happen, that's why we want to use the safest possible batteries and make sure the mod got good vent holes. To avoid these rare failures.
Sure this could happen to everyone/anyone, but i just feel this is just a propaganda war against the ecigg further on. Especially since this is comming from the fox channel. Which basicly lives of "sensational" things...
But all in all this also shows that, mechs does require a certain learning curve to get into, safetly. I've seen far to many ppl on here recommend mech mods to beginners. There's so much to learn/read before taking that step imo.
I'm glad that the guy made it through with minor damages though!
Edit:
Another thing that grind my gear how it could explode basicly right away, If the battery is venting you'll feel it before it'll go into explotion mode. Due the severe heat it'll make due a vent. Unless this guy wasn't using an IMR cell. Then i could see why it exploded right away.
Even if you were to use a mech mod without vent holes, the mod will get realy hot before it goes to chaos.