Odd choice to use ClojureScript in a tutorial. The point of a tutorial is to convey information effectively. This is like a physics professor deciding to lecture in French because they think it sounds better.
The clojurescript makes this an absolute slog to read.
That said, a number of those languages are interesting and great even of they aren't as simple as the tutorials make them look.
I just dont understand.
+ not only there but also in Québec, Switzerland, Belgium, a lot of African countries. Millions of people understand French as a first or second language. Moreover there is a lot of scientific literature in French, in particular in linguistics (the field was created in French, actually). I find your statement rather insensitive.