Thanks Fizzie41 for the clarification of the name.
What do you mean with "Standard [...] in Australia"? One of the generall "good practice rules" is "one feature, one OSM element". The first of the "Examples of bad situations" describes basically what we have here:
https://wiki.openstreetmap.org/wiki/One_feature,_one_OSM_element#Examples_of_bad_situations

For my understanding the current way of tagging represents two fire stations in one place. And that does not fit to the real world.
Do you have any context to why this doubling of the object is or should be the (Australian) standard?