There's a lot of issues with that article but to pick on one as you pulled it out specifically: PoS is here, has been for years and is extremely successful; Po

There's a lot of issues with that article but to pick on one as you pulled it out specifically: PoS is here, has been for years and is extremely successful; Polygon side-chain for instance already has surpassed main net in terms of active addresses. Then there's L2 and PoS L1s like Tezos... The meme of "when PoS?!" died in 2021.