Iced coffee in Australia seems to automatically imply sweet with lots of milk (or even ice cream). This is very jarring when you expect the default “iced coffee” to be black coffee over ice.
As previously mentioned Boss does do a decent black iced coffee though, and there are a few niche brands around putting out less sweet varieties
Same reaction I had the first time I ordered a cappuccino there. I learned to order Flat Whites cause I kept forgetting to tell them to not put chocolate powder on top...why anyone thought that would be a great idea is beyond my comprehension. The Flat White on the hand easily makes up for their cappuccino faux pas