Fair point, but ETH is not just Mr. Buterin and some close friends deciding to postpone mining winter at will. There are currently 8 groups building ETH impleme

Fair point, but ETH is not just Mr. Buterin and some close friends deciding to postpone mining winter at will. There are currently 8 groups building ETH implementations (https://www.coindesk.com/next-gen-buidlers-the-8-teams-working-on-ethereum-2-0 https://www.coindesk.com/next-gen-buidlers-the-8-teams-worki...), so you have /some/ level of decentralization since they all have some weight in decisions. Ultimately, the consensus in any classical blockchain HAS to be uniform, and that introduces an element of centralization (via the consensus algorithm used). That has always been true, and the contentious forks of BTC (and lately BCH) with their fights about the ticker symbol, name, and who has the "true vision" have made this pretty clear. Differing minority opinions have to go the hard fork way and hope to build something better.