It's a german inside joke, explained in this video (in german).
There is a far right politician named Björn and who was mistakenly called Bernd by a local newspaper and got angry. To annoy him, a satire show calls him Bernd all the time. This caused enough confusion, that a public broadcaster messing up.
Edit: spelling
Passports are checked by some government authority, they don't give you access to the data, so the professional racist is there for statistics used by whomever.
Iceland's in the Schengen area so there's a lot of flights coming where they don't even ask for your passport. That's how it was done when I was there in 2019 or so, anyway.