Literary critic: A folktale is a traditional story told in an entertaining way, which may lead some to think that folktales lack deeper meaning. But this is not the case. A folktale is passed along by a culture for generations, and each storyteller adds something of his or her own to the story, and in this way folktales provide great insight into the wisdom of the culture.
The statement 'Any tale that provides insight into the wisdom of a culture is deeply meaningful in some respect' is an assumption required by the literary critic's argument.