If you look at the document's header you'll see that this is a potential "embargo" for several developed countries. What it does if countries in the G20 will based their findings of the opinion of FSB in the article they have written out. Personally FSB created their conclusion without bias towards cryptocurrencies but basically the threat they are calling "GSC" is something nonexistent as of the moment. Right now this potential embargo they are planning is a preparation for what is it to come when a cryptocurrency plans to become a GSC, countries part of the G20 who have agreed with the embargo would essentially not accept the GSC in their country.