These fail my litmus test, which is, "can a third-party look at the diagram and make sense of it without verbal explanation?" For a more formal approach to coherent diagrams and white boarding, I recommend the C4 model. It's conceptually simple and results in better system documentation than the free form method that's commonly used.
Learning the language of understanding charts and diagrams is not obvious. From reading maps to understanding log-log plots, box and violin plots, etc. I mean there is a whole industry around this.
I think the ability to be able to transition in the same diagram to different semantic complexity levels is amazing. I want this for ALL of my communication and information mediums.
I am only commenting on the tools ability to zoom in and out from an abstraction level and not on the philosophy of how diagrams are constructed.
https://youtu.be/x2-rSnhpw0g