That's an extraordinary claim since every group of humans in written history, not to mention chimps, whales, and probably all social vertebrates, form social hierarchies.
If that's an accepted idea in the field, hopefully it comes with a lot more evidence than bones being mixed, as future archaeologists might find in many of our cemeteries of today.
This is my main problem with archeology. They take a small amount of evidence for something and use it confidently for their conclusion. There are so many other possibilities why something could be true, but those are ignored for whatever theory appeals to them.
The above comment also illustrates their biases. They map their knowledge to history that came much later to the Tepe sites. Stating that it was "was likely only the craftsmen or shamans" is a prime example of that.
