As some other people already remarked, on the face of it this looks like the venerable Unix approach of small tools in a script. My point is that the real world outside, that you are trying to capture in a programming language, can be very complicated. For some domains, e.g. logic or arithmetics, the language can be pretty complicated too - see APL, LISP or Prolog.
But in thirty years of programming (computational linguistiscs), I have found that Unix scripts, awk and plain C covered pretty much 90% of (my) programming needs. If and when necessary I tacked on a larger database system. Of course I tried the new (well, in the nineties they were new) OO systems, but I rapidly got lost in a jungle of libraries and methods and even more documentation. Compare that to the almost ascetic (and aesthetic) clarity of the Unix environment.
Yes, I feel that Unix still has a lot of mileage in it and intentionally or not, this item and the reactions on it, confirm me in this view