Are you attempting to ask honest question here or are just taking a contrarian position against a view I do not hold? Are you unaware that it is fully possible to study a subject while also respecting it? It also seems to me that the questions you are asking are very black-and-white such as "And where is the limitation?" on an issue where there are many nuances.
Despite how little we know of ancient rites, I am fairly confident that being exposed in a museum or transferred to the storage room of a warehouse is far from the respect expected by the deceased when the burial was arranged, no matter how much care you take.
It’s a kind of value debate that has no definitive answer anyway. I am personally on the side that once dead, the corpse is just a stack of decaying meat which doesn’t command respect in itself. So it’s really a function of respect to the livings to whom the deceased meant something. And this wanes fairly quickly. Perhaps a century or two for a random quidam. Perhaps a few centuries for someone illustrious. But I am not religious either.
