Yeah I saw this too a few days ago. Apparently This is a reference to "Cargo Cults" which gained popularity with Islanders in the remote parts of the Pacific ocean who saw the US army receiving goods by airplane, they went onto create fake planes and even airstrips with the belief that they could magically divert the flow of goods to themselves. I imagine the Rieklings have seen cargo transported by horse and carriage and are trying out their own "cargo Cult" practices. Well good luck to them I say!!