The difference between now and then is that now Ethereum has had the Proof of Stake Beacon in operation for over a year, and the next phase, which merges the ex

The difference between now and then is that now Ethereum has had the Proof of Stake Beacon in operation for over a year, and the next phase, which merges the execution chain into the PoS chain already, has a running testnet. The projections on the completion date of the switch to PoS is now far less speculative / more reliable.