The dating of the Buhl burial was done with the best methods available in 1991.

The freshwater reservoir concern was not unknown in 1991, but it was less systematically applied to human bone dating, and the specific circumstances of the Buhl burial — the dietary evidence that would have flagged the concern clearly — was not available until isotopic analysis was completed, which happened around the same time as the dating.

The single-date limitation was noted in the original report; it was not hidden or ignored.

The Jazwa et al.