It could be, because cultures that were using human bodies, instead of burning or burying them, went extinct.
> Prehistory of endocannibalism controversy
Whether or not endocannibalism was commonplace through much of human prehistory remains controversial.
A team led by Michael Alpers, a lifelong investigator of kuru,[14] found genes that protect against similar prion diseases were widespread, suggesting that such endocannibalism could have once been common around the world.[15][16]
A genetic study with a range of authors published by the University College London in 2009 declared evidence of a "powerful episode" of natural selection in recent humans. This evidence is found in the 127V polymorphism, a mutation which protects against the kuru disease. In simpler terms, it would appear the kuru disease has affected all humans to the extent we have a specialised immune response to it.[17] However, a study drawing from hundreds of resources in 2013 claims further that 127V derives from an ancient and wide spread cannibalistic practice, not related to kuru specifically, but "kuru-like epidemics" which appeared around the time of the extinction of the neanderthals who co-existed with humans. This allows the suggestion that cannibalistic practises may have caused diseases which killed the neanderthals, but not the humans because of the 127V resistance gene.[18]
>The earliest known reference to a requirement for a six-foot burial occurred in 1665 during the Great Plague of London. John Lawrence, the Lord Mayor of London,[13] ordered that the bodies of plague victims "...shall be at least six foot deep." The city officials apparently believed this would inhibit the spread of the disease, not realising that the true vector was fleas living on rats in the streets.
> Prehistory of endocannibalism controversy Whether or not endocannibalism was commonplace through much of human prehistory remains controversial.
A team led by Michael Alpers, a lifelong investigator of kuru,[14] found genes that protect against similar prion diseases were widespread, suggesting that such endocannibalism could have once been common around the world.[15][16]
A genetic study with a range of authors published by the University College London in 2009 declared evidence of a "powerful episode" of natural selection in recent humans. This evidence is found in the 127V polymorphism, a mutation which protects against the kuru disease. In simpler terms, it would appear the kuru disease has affected all humans to the extent we have a specialised immune response to it.[17] However, a study drawing from hundreds of resources in 2013 claims further that 127V derives from an ancient and wide spread cannibalistic practice, not related to kuru specifically, but "kuru-like epidemics" which appeared around the time of the extinction of the neanderthals who co-existed with humans. This allows the suggestion that cannibalistic practises may have caused diseases which killed the neanderthals, but not the humans because of the 127V resistance gene.[18]
https://en.wikipedia.org/wiki/Endocannibalism
>The earliest known reference to a requirement for a six-foot burial occurred in 1665 during the Great Plague of London. John Lawrence, the Lord Mayor of London,[13] ordered that the bodies of plague victims "...shall be at least six foot deep." The city officials apparently believed this would inhibit the spread of the disease, not realising that the true vector was fleas living on rats in the streets.