It is worse than "that's just your opinion man" since the statement tacitly accepts the religious premise that the killing of people represented by the skulls w

It is worse than "that's just your opinion man" since the statement tacitly accepts the religious premise that the killing of people represented by the skulls were a "practice of human sacrifice." There was never a tradeoff for the Mexica in which they had to give up something worthwhile for something more worthwhile, only delusion. It is like saying in a couple hundred years from now "For them, the gas chambers and crematoriums—the entire plan to purify humanity—evinced the Nazi's barbarism and justified laying waste to Germany in 1944."