Human bones – is this news?

CBC reports on the discovery of 18th‑century human bones near a cemetery in Quebec City. Archaeologists are treating this as a great find.

I simply do not get it. The 18th century is not so long ago. The lives and existence of those people is documented, it’s part of history, not a prehistoric conundrum to be elucidated. There is no reason to disturb their graves and crow about it.