Is proof-of-stake a proven technology yet though? Has it been shown to function without loopholes or exploits?
So while not there yet, it's on its way to becoming proven technology. A big test will be how it handles general transaction processing. The Beacon Chain is limited to finalizing Ethereum PoW chain blocks at the moment.
https://viktorbunin.medium.com/proof-of-stakes-security-mode...
Tezos smart contract ecosystem has grown to 10% of Ethereum and it's gas prices are pennies (and will continue to be).
Ah if the market was logical.
As long as adoption increases it will be fine in the end since all that money that PoW chains spend on those power plants and GPUs goes straight into the pockets of Tezos holders. And the foundation has enough money to support the development for a decade or two.