At the expense of the “permissionless” nature of crypto, moving from “anybopdy can join with his GPU” to “you must pay the insiders to join the party”.
I also reveals how centralized ethereum really is in terms of who holds the power: a blockchain where the devs can screw the miners like this isn't really reassuring…
Bitcoin's carefully crafted balance of power (and the disapearance of Satoshi) lead to a technological deadlock where nothing can really change, while Ethereum's totalitarian governance model allows it to iterate on the technology, but lost the freedom ideal in the process …
You don't have to "pay insiders", you simply have to purchase an asset on a liquid market. You can pay me and a thousand other people, it doesn't have to be insiders.
The bigger problem with PoS is that there's no ongoing cost. Buy your stake, don't fuck up and you're making money. Not true with mining, and this changes the incentive landscape quite a bit.
The Merge will reduce Ethereum's energy consumption by ~99.95%.