Earlier quoted context omitted.
How do people know it was taboo for them?
Why is it not taboo any more?
Maybe people are just going off assumptions and commenting on that basis but I'm generally curious what proof people have. Specifically, when it comes to such a culture finding the energy of attempting at storing the body and for their view on the afterlife requiring it as a necessity. I have no reason to assume such a culture wouldn't find inspecting graves to some degree as taboo and for any benefits of continuing the process they seemed to care about.