You're presenting me with a hypothetical situation, i.e., if my child were to die by cougar mauling how would I feel if someone were to make the apparently callous comments I made?
Honestly, I probably have a very, very different view of the natural world than you do, a very different relationship to wild animals. I've been confronted with "dangerous" wild animals (bears, wild horses, poisonous snakes, extremely large snapping turtles, skunks) and neither myself nor my kids have ever been harmed. Many injuries to humans comes from their own absolute lack of common sense about how to act around/treat wild animals. Hell, most injuries from domestic animals are because people have NO idea how to treat animals, no sense of reading their body language or understanding their psychology.
I've never lost a child, I don't know how it would make me feel, but I still doubt if I'd blame an animal for doing what comes natural to it, I'd more likely blame myself for not teaching my child how better to handle himself in such a situation, or damn myself for choosing to live where I did. But, again, I grew up around animals and I respect and revere nature, I don't think it should be subjugated and controlled.