Not really cos that where P2P comes in to play.

You may not be able to swap your crypto to fiat via a bank card in countries where such policies exist, but you'd sure be able to transact via p2p and have your account credited by the buyer.

In this case, you'd (i.e both parties) be the ones to determine the exchange rate for yourselves as well as conduct transaction without needing a third party such as the banks through whom the fed executes her financial control policies.