I suspect a bit of both
They have kit which can cut through way more serious stuff than steel nowdays. You have to have it when dealing with the various space alloys and ceramics which go into the prosthetics and implants.
However, that kind of gear is usually not in A&E (it is only in places where they do specialized surgery). There is definitely a sh*ts and giggles element too and that is on purpose. They want the most ridiculous instances to become famous enough for people not to try it again and create more work for the A&E department (though that usually does not work - people never learn).
Biting the hand that feeds IT
