Jeremy Rubin is not a source I would put much faith in when it comes to pronouncements about Ethereum. He is still angry that a tweet that called one of his projects a scam was liked by Vitalik Buterin. He even wrote a blog post about it.
https://rubin.io/blog/2017/09/01/ethereum-censorship-fuck-nazis/ Sorry, but this guy talking about Ethereum is about as credible as Roger Ver talking about Bitcoin.