I did read a couple of more serious articles on this find, and apparently the old healed bone damage is there.
But yeah, regional or tribal differences in burial custom and usage, the presence or absence of grave goods, and the nature thereof, can make interpreting burials very difficult. For instance, in the Inland of Australia, a number of tribes practiced burial by exposure. Basically the body was placed in a high tree, or up on high rocks in areas that don't have trees, to be taken back by the earth through the media of sun, wind, rain, insects and birds. The process was accompanied by songs, marks carved into the tree or stones, and either loud mourning or silence, whichever was the local usage. (In other areas a body might be buried, burned, or otherwise dealt with, with or without grave goods.)
Outsiders tend to think of the Aboriginal people as a single culture, but this is not so. There were hundreds of tribal groupings spread across a huge continent, with languages and customs as different as those found across Europe or Asia. Depending on the area, the body might simply be left there. Or once the flesh was gone, the bones might be collected and painted with ochre, tied into a bundle, re-exposed at another site, decorated or not, buried or put into a cave or a rock hollow, or placed with the other dead of the person's family, or even carried about with the family for a time, or buried at a site where the tribe frequently camped.
There were ways of preparing the bones which were different for child or adult, respected tribal elder or outcast, harmless person or one who might leave an evil ghost - the rituals for making sure a dead kadaitche didn't follow the tribe were especially complex, presuming the tribe knew he had died.
So yeah, with those examples before me, I can quite understand that burial customs might be a very hard knot for the archaeologists and anthropologists to unravel! But female warriors do turn up in the sagas.
