I guess he mostly means as a way to get around currency controls. Obviously if the government comes with the police you can be confiscated

But for example, Argentina has incredibly harsh currency controls, any freelancer or company that tries to export goods or services gets paid half the value per dollar and is forced to sell their dollars to the government

While companies can't really avoid it, most freelancers go around the control by using crypto and so can get the full value of their work