I know this is a little bit out of topic but I think meta-rationality is more about organizing other people/machines intelligences to achieve your goal even when you are not highly intelligent.
Around 2015 Vitalik Buterin was one of the few crypto geniuses and leaders. For many years the Ethereum project leaders promised ETH 2 to solve some of the issues pointed in the article but they never delivered. It is understandable that they never delivered because there was a lot of complexity involved in improving permissionless blockchains BUT seeing a new wave of blockchains with good foundations makes one think they never delivered because they have not tried enough. Vitalik and his troop have enough financial resources to stimulate or hire top blockchain researchers from top universities around the world. It seems like they never pushed hard to move Ethereum. With enough resources you should think like you are doing the Manhattan or Apollo 11 projects.