Yes,
The example definitely shines. Doing something barely non-trivial is great since it gives a feeling for the language. I wish other language introduction pages would take note.
I really like this language introduction.
It does feel like you need some shared understanding with the author about what the interesting parts of a programming language are and what can be left implicit.
Perhaps the author and I have similar intuitions? I guess I also like that isn't pure LLM output style. It was refreshing to see some human work.