I'm a bit confused by this comment, because the article isn't really about the "why", it's mostly just a description of the phenomenon. Maybe you're responding

I'm a bit confused by this comment, because the article isn't really about the "why", it's mostly just a description of the phenomenon. Maybe you're responding to the clickbaity title? The nest is interesting to me, if for no other reason than that it's pretty. That said, I can imagine that understanding the behavior of social insects, generally, might have practical implications in designing swarm robot behavior.