I don't really buy that theory. There's no explanation for why it needs to be this very-hard-to-cast bronze dodecahedron, instead of just a wooden board with pegs and holes, which is all that would be needed for the video above.
The cheap and simple versions would have rotted away by now.
I’d argue if they did, someone was getting fired immediately.
I don't really buy that theory. Do we have any other examples of fancy decorative versions of working class tools?