Top Level Domain .at has no mandatory connection to Austria - because German judges think so. Unless you live in Switzerland - then the judges have a different opinion. All this nonsense about naming rights is simply ridiculous - arbitrariness would almost be a reliable alternative against all the judgments that have been made in Europe on this matter.
A similarly absurd justification - that a top-level domain does not stand for a country - was also brought up with .ag. There, the judges even dared to determine that only an AG has the right to a domain under .ag.