Not really, there are many similar examples elsewhere. For instance Singapore an island country with a population of close to 6 million has an airport that handles 62 million.
Sorry, don't see that SIN is a similar example. It's a fairly major long, medium and short-haul hub with one of the world's major long haul carriers based.
The only similarity is that a large Airport succeeds in a Country that has a much smaller domestic population than it's annual throughput. As you say, the same could be said of many.
Anyway, was just trying to be positive about what's been achieved at DUB.