Whenever I heard the expression like "tens of people" died because of some accident or disaster from news, I thought the same thing. How many is "tens of"? If 90 people died, they'd say tens of. What if one more people died? It's still tens of. If 102 people died? They'd probably say "more than a hundred". It's a person's life, but in news and statistics, they're just "number". It's a sad thing. :(