I'd have to agree, it's a slightly misleading title. This part was the most interesting to me: "Notably, few of the many studies were performed by interdisciplinary teams. While both physical scientists and archaeologists have tackled the problem, the divergent sets of skills and interests may have delayed a solution to the mystery."

There needs to be a lot more collaboration between scientists and archeologists/historians on questions like this. Experimental archeology is an interesting subset of this, but my impression is that it's been fairly moribund since the 70s and 80s: http://en.wikipedia.org/wiki/Experimental_archaeology