From the way this woman is portrayed in this post, this woman obviously believed that the myth was literally true, or was acting like she believed it for some other purpose.

If she actually believed in the literal interpretation of this creation myth, then it doesn't matter whether or not there is a plausible metaphorical or symbolical interpretation. The subject matter, and conclusion of this post is indifferent to the nature of the myth. What matters is what that woman believed. Whether Yudkowsky is biased or not is irrelevant to the purpose of his post. (Unless were not assuming that this creation myth is false.)