Arunta's crew, and the Australia navy, are probably very happy to have a real rescue (as opposing to a drill or a training exercise) to perform that doesn't involve getting shot at.
I can understand a relatively small population like Australia's carping about the fact that they rescue a lot of people in the surrounding waters some distance away from Australia proper, but they are the only game in town in that entire quadrant (New Zealand excepted). Neither India to the north or Polynesia to the east has the ability to rescue people in boats at this distance.
Bringing two Open 60s alongside each other in the open ocean would destroy both boats, I think, 9 times out of 10. There aren't enough
fenders to compensate and the
rigs would tangle immediately.