There is a HUGE difference between resolvable to 'a natural person' v. 'a specific natural person.' This difference is basically the gist of the article.
Non-citizen national here. I have a special passport, and am considered a non-specific, non-naturalized person. I have to create (foreign-owned) LLC's in order to work within the system/collect or pay taxes/earn a wage in Dollars. I've met at least a hundred people that have the same status as I do. I'm told there are thousands of us.
To play up the SF angle a bit, this might change when lobbyists start accepting Bitcoin.