Agree this usage is odd. My guess is that they are used to describing people by their institutions: writing things like "Caltech scientists showed..." etc. is v

Agree this usage is odd. My guess is that they are used to describing people by their institutions: writing things like "Caltech scientists showed..." etc. is very common in such articles, to save readers from having to keep the names straight. And of course this identifier is uncontroversial the day after they got hired. But who counts as Danish is obviously a thornier question. I don't know that "nationality we identify with" captures it, as it's mostly about what others think of the person. It doesn't line up perfectly with having been issued a passport either. And being Danish is also different to being American... This applies to sub-national identities too: Wasn't the old-time saying (something like) that you could become a New Yorker in 6 months, but to come from Boston took generations?