They did that to pay homage to Australian culture and actually payed royalties to the family who wrote the song, turns out when she submitted it to some girl guides song writing competition they got the copywright.
And anyhoo, the OP has made clear in other posts he was trying to say they took inspiration from it, which they probably did.
You may not have realised that my comments where set 'tongue in cheek' so to speak!
None of the questions I posed or answers given were meant to be offencive or to be taken seriously and the links provided where simply to inform - not prove any point.
Furthermore, I go on [in my previous post] to say 'the author will undoubtedly draw on his or her past experiences including materials heard, seen or read.' So, It is plain to see I was agreeing with the OP in relation to the ending 'took inspiration from' point you make. I also claim 'Beth did not steal anything'.
Really! If we are to take all this to the extreme, no more books or songs or games could ever be written for fear of the author being accussed of some wrong doing! (Please keep that in context.)
Back on topic, the linked picture from the OP does put one in mind of Whiterun somewhat. The picture also brings the unnamed town with the mead hall (Heorot) as descriced in Beowulf to mind - kind of. Norse or Nordic history gets drawn upon in all kinds of 'fantasy'.