They may have been trying to specify it, like [Lisbon], [Kraków, Poland], [Edinburgh]. They're readers may have literally not heard of Kraków before and need th

They may have been trying to specify it, like [Lisbon], [Kraków, Poland], [Edinburgh]. They're readers may have literally not heard of Kraków before and need that. Unfortunately, the English language uses the comma for multiple purposes so you get messes like that headline.