Yugoslavia did exist at the point in time when they had hyperinflation, which is what I was referencing. For the record, I certainly do not think Yugoslavia, Angola OR Peru or are continents. I just rephrased to make that more clear. Thanks for your input!

The author didn't say those were continents, she said 'foo has occurred across continents', then gave examples of countries on different continents where it occurred.

The sprinkbok is native only to South Africa, Botswana, and Angola - would you rail that it should not be described as an African animal because it doesn't cover a majority of the continent?

Did you also interpret her as saying Peru, Brazil, and Angola are continents? Because those aren't either.

Maybe she should have said "Yugoslavia HAD sufferer", but that's a minor grammatical nitpick that would have made the phrasing much more clumsy.