Absolutely. All excellent points.
This amusing property of Wikipedia is just that- an amusing property of Wikipedia. It’s the six-degrees-of-Kevin-Bacon game that you can play on any sufficiently large data set with a minimum amount of connectome density. Provable by any graph theory student. Still fun, though!
That “Philosophy” ends up being the Kevin Bacon in this particular graph says (as you say) much more about the unexamined biases and editorial policies of Wikipedia than anything about the fundamental nature of human knowledge.
