By Mark Whittington
Spoilers surely follow.
Does the episode put the human sacrifice in context as a deeply held religious belief? Does the episode show any of the Aztecs' achievements in art, architecture, or astronomy? Probably not.
It's as if you depicted Americans solely by showing them nuking Hiroshima. It would be accurate, technically speaking, but it wouldn't be representative or fair. Same with this episode of Deadliest Warrior. Depicting the Aztecs' human sacrifice out of context is stereotypical.
For more on the subject, see Apache vs. Gladiator and Were the Aztecs Murdering "Animals"?