I think the fed wants ethereum tokens to be the basis for stable coins, and this is why they have been influenced to move to POS to reduce transaction cost and improve on-chain speed. It the size of the database will quickly become untenable for anything but a big business. They're basically making the perfect cbdc, something that is flexible to market forces for technological adaptation but traceable by the feds, a.k.a. the human centipede of currencies.