I have answered it here.
With your perspective of the finality of life, you cannot possibly understand the principles behind this story. Unless you are capable of conceptualising the ability of a child, at that time and in that God forsaken place, to be corrupted at a very early age, you will never be able to conceive the sheer morality in taking the spirit from the body, and placing the spirit child safely into the highest Kingdom of heaven to be cared for. You just cannot comprehend this because you have not been blessed with the knowledge that there even is a heaven where the majority of us will end up. That in that place there are many mansions where God will find a place for each and everyone of us. That the happiness found in the kingdom where those children will reside is incomprehensible to our understanding, therefore, you can not see the benefits of the child taken out of such corruption as you would naturally think, better a bad life then no life at all and nothing at death. You simply cannot see it, but you do not have to. You are an atheist. You do not believe in the bible. You, therefore, do not have to believe in a flood where children and animals perished. It is all irrelevant to you and only really pertains to us Christians, who believe it. So, you have no ground on which to debate something that is a fallacy to you. Just put it down to Christian essentricity.
Well, no need to fret any more. The story is contained in the bible. You do not believe in the bible and it's stories so from your perspective it never happened. It is only relevant to Christians as they have an eternal perspective so can fully understand the principles involved, whereas, you think that the grave is the end of us. So, take a chill pill and leave us with our belief.