Oh wait, what's this book? Oh, cool, it's about a kid being mauled to death by a demon! Oh look, another one, what could this one be about? Oh sure, it's about a kid being driven to insanity by another demon!
It's more or less that allowing children to be killed in game will inevitably result in an idiotic PR disaster, that will make everyone involved look stupid.
Why so sensitive about children, it's just a game, it's not real. The harsh reality is that children would die in such a place and time. I suppose in a time where we blame video games for real life issues then it's sensitive.