It sounds like the work of Conan, the barbarian.
Sloppy. With the all the microscopic analyses of wounds, I was surprised that they had not undertaken genetic analyses to determine how or even if the buried persons were related to each other.
All kinds of information could have be learned. Might even add some real facts to substantiate all the speculative climate change claims being made at the end of the article.
Consider what this group concluded from analyzing pre-contact Maya feces from a major city that was layered on a nearby river bottom:
Now there is an example of a thorough, professional approach. < / sarcasm>
I think this is the burial ground associated with a large settlement that was covered by a terminal ash layer (rich with spearheads and arrowheads) representing the burning of the settlement to the ground and its extinction. So, yeah. :^)