Money buys you voting rights in some proof-of-stake implementations that give governance rights to stakers. Ethereum's doesn't do that. Its stakers have no more governance rights than miners.
They were talking specifically about the Proof of Stake model that Ethereum is working on moving to. They were saying that, while some proof of stake chains may use stake for governance, that the protocol for proof of stake intended for use in Ethereum, does not grant any governance roles.
