The green list paradox: You can travel to Liechtenstein but it's landlocked and has no airport

Balzers village in Liechtenstein, which has a heliport. There is no airport in thr country.
Just four countries will remain on Ireland's green list for travel from Monday: Cyprus, Finland, Latvia and Liechtenstein – and one of those doesn't even have an airport.
Liechtenstein has a heliport in Balzers but no airport within its borders. Its nearest international airports are St Gallen-Altenrhein Airport in Switzerland and Friedrichshafen Airport in Germany, neither of which is cleared by the Irish government for non-essential travel from Monday.