It's an interesting point. Car jumper cables maybe isn't a good example, but what about extreme sports or even just car crashes etc? Is there something in particular that makes this activity worthy of so much attention? Is it perhaps that electrocution seems very dramatic, or maybe the fact that many people have one of these deadly devices in their own kitchens?
The questions were meant to be rhetorical questions, but did get plenty of informative answers that using jumper cables with a 12V car battery is unlikely to result in accidental death.
Any article/video that says N number of people died doing X should provide some context about how many people do X, how many people die doing Y, which is similar to X.
There are plenty of ways that it could result in accidental deaths, just not by electrocution. For example, if you have an open container of gasoline (also known as a fuel-air bomb) and you accidentally strike both jumper cables together (spark).
