The little man in the attic story simpley doesnt equate to even nearly the same thing. The analogy imho and is yet another not so well vieled attempt to insult people of all faiths that differ from your own. Which I might add, is so much the scientific pot calling the religious kettle black.
Your ancestors and family members, the very people you trust in your comunity, didnt pass down stories about him from generation to generation becuase more than one of them saw it or experienced first hand for themselves and felt at the time it was so vitally important to them that their children carry on the same beliefs and traditions as they did into their posterity.