Part of the point the article is making is that some of the contribution the carcass makes to the ecosystem is by sustaining large scavengers (and opportunistic

Part of the point the article is making is that some of the contribution the carcass makes to the ecosystem is by sustaining large scavengers (and opportunistic carnivores). Burying the carcasses would preclude that (and likely reduce access for other members of the necrobiome).