I think GP is merely referring to the idea not that Crypto Currencies AGMI, but that the Fed/Gov are allowing it all the happen so the research/investment is made to get the technology to the point that a PoST/PoS/(Solana|Cardano|Etherum|etc.) system exists as a reference point to create "FedCoin" featuring centralized control by the fed, but decentralized and trustless processing beyond that.
A system that is powered by crypto making payments and etc basically free, but with the ability to reverse fraud transactions or similar. They have their own goals/constraints that are different than crypto currencies today. Another comment refers to a universal API; even if the API is JUST for settlement between banks it would probably make things way simpler, cheaper, and more efficient.
edit: typo, added universal api comment agreeing with comments from kasey_junk
A system that is powered by crypto making payments and etc basically free, but with the ability to reverse fraud transactions or similar. They have their own goals/constraints that are different than crypto currencies today. Another comment refers to a universal API; even if the API is JUST for settlement between banks it would probably make things way simpler, cheaper, and more efficient.
edit: typo, added universal api comment agreeing with comments from kasey_junk