From the environmental perspective PoS blockchains are acceptable (merely very slow and inefficient rather than outright planet-eating). They're still pretty dystopian long term, since they're fundamentally plutocratic and naturally leading to an oligarchy.

Ethereum PoS is perpetually "almost there" like Star Citizen and the Year Of Linux Desktop. I don't think anything they say matters until they actually shut down the PoW system (which I don't think they can).

Either way you will still have to pay gas fees to the staking overlords for the permission to do anything on the blockchain they control. I'd rather have a federated/self-hosted system, and drive it down to as close to free-of-charge as possible by improving its efficiency.