Why do the Native All-Stars in the NRL use dot imagery?

[AFL Warrior]

The use of dot images in Native artwork is only relevant to Natives from Central Australia. Therefore the question is why do the Natives of the NRL use these images as it is not their artwork? The Natives of the NRL are all from the east coast and should be using their own images not that of the Native people of Central Australia who support AFL. This is another example of the NRL via their Native players of being unethical.