I came across this claim on Penn State's website here and while I had always known the stories of Emperors being entombed with their servants, I wasn't familiar with the claim that Bronze Age China looked Aztec-tier in their penchant for ritually sacrificing people. It also holds makes the wild claim that the Shang Dynasty (or their elite, at least) held some kind of monotheism, which is an assertion I had previously only come across from Hong Xiuquan.
How much do we know about ritual sacrifice in the Shang period? Who do I read here?
As a side note not directly related to the question, I've written before about how Mesoamerican numbers are exagerated by people without the depth of research necesary to talk about them, this is a very variable subject (since you are talking about dozens of civilizations, hundreds of cultures over a period of around 4-6 thousand years, perhaps more), but the "sheer numbers" in Mesoamerica at the time of Aztec contact would be at around 18, perhaps 25 people a year given the religious festivities that we know of in the Aztec calendar.
Something often missed is that Duran's account of 250k sacrifices a year is him making fun of the number, not him corroborating it.