Yeah I saw those. It's what made me think of my hierarchical structure for my work stuff. But not sure that I'm really understanding or just pattern matching to something similar but different.
You won't necessarily find an example that matches your use-case. I wouldn't assume that this was made with a regular note-taker or GTD-style productivity person in mins. Not every tool needs to work for everyone.
I think if your work already involves drawing flowcharts or diagrams of connected nodes, like in the biologist in the example, them it will make sense. If not, it will probably not be useful.
