I wonder how well they checked the remains for signs of injury.
If they go about it the right way — the archeologists will be employed for the rest of their careers studying each and every bone.
I suspect if they had found injuries they would have mentioned it. The fact that it was “juveniles, young adults, and middle aged” people suggests something to me. As they do not report elderly people, I suspect that it was a major epidemic of something. The elderly had probably already been subject to an earlier epidemic of that germ, and so had immunity when it came around again after many decades. Perhaps they will be able to analyze some parts that were not totally destroyed by the fire to find the disease source.