So after two years of waiting I had enough and ordered this about ten days ago. Had to go through a bunch of hoops and subscribe to a specific import service from our postal service, so that the device could be sent over to Germany and then shipped to Luxembourg. A bit more expensive and I'm probably looking at a certain delay for delivery as well.
Today I receive a newsletter from Panic that they now ship to every EU country.
Edit: if anyone else is interested in this, they also mention that they have stock now, so no more waiting times either.