Hmm. From watching their glitzy video, it seems the basic idea is the two parties document their sides, and the crowd votes on which side should win (if your vote supports the winning side you get paid a small sum). It's easy to create smart contracts with oracles proving receipt of funds, but trustlessly documenting non-delivery of a good or service for remote adjudication is just about impossible. And the "jurors" have no skin in the game so have no real incentive to do any due diligence at all. All my opinion from a quick look so I could have it wrong. 😊