not sure but lot of danish players where part of german cs a long time..
same for some spanish, dutch, polish and belgian players aswell.
although some of them where before GO or early GO
Almost all the best international teams got important Danish parts of them and the younger talents in the Danish scene got enough teams with enough potential to play in their mother tongue.
Why would a Danish player go international?
It is a bigger issue for me that the Swedish players haven't really tried it until late 2019