It is jarring and since you brought it up there are very few good analogies in other cultures.

e.g. I know a few people go off about lions in European heraldry but lions were at one point spread across Eurasia-Africa. It’s just not a good analogy for how quintessentially Australian some things are.

It goes both ways. Businesses do it all the time. I could name many Australian examples going the other way.

So, my guess is that it says more about us than it does about other peoples and just how we get worked up about it.