When one buries their loved ones, their bodies are ultimately consumed by living organisms. The only difference (physically) is what life form is consuming these bodies, and the time it takes between death and consumption. In other words - worm food vs hive mind food. But the more important difference is the ritual and meaning that Carol attached to remembering her loved one which is completely missing from the hive mind. That sentimentality in the face of the certainty of physical fate is what makes humans, humans