This argument is common, and this is a good answer; but so often people aren't "parsing" XML but extracting a few bits of it and would have benefited from less cargo cult and more thought in the answer cited.

As it is, I've seen this article used to scare people away from "can i make a game behave differently?" efforts that would have been trivial to do and likely given these people a gateway "i can try to be a programmer" experience.