Metaphors, narratives, memes, frames... are important in that they shape the debate by setting its context and influence what is and what is not possible to discuss without an abrupt change of context.

I personally reject the metaphor used by Fisher and the way it influences the direction of the debate.

There isn't a Fafnir for Siegfried to slay.

Those whom the Gods wish to destroy They first make mad. — Euripides