I wasn't involved in Ethereum that early. But in retrospect I find it allowable/acceptable. The reasoning is Ethereum is an early project, its design is highly

I wasn't involved in Ethereum that early. But in retrospect I find it allowable/acceptable. The reasoning is Ethereum is an early project, its design is highly centralized like a startup because very few people have the convictions and breadth of knowledge that Vitalik and co. possess. It's aspirations are not the same as Bitcoin: Bitcoin wants to provide value by being irrefutable property. Ethereum wants to be the world computer. Ethereum's technical complexity makes Bitcoin look like a Ford Model T, while Ethereum is trying to be a space ship with warp speed capability. Obviously it is not the within the spirit of blockchains to conduct a rollback to save people's funds from hackers. But at that early stage, it might hurt adoption more than help if people get burned so badly. If we look at the tradeoffs, I think its worth it. If people prefer absolute immutability, they can use Ethereum Classic.