In Zen and the Art of Motorcycle Maintenance, the author talks about the importance of being able to carve up ideas in different ways to understand it more thoroughly. I'd say knowing how to code, as in going through the process of understand how to think through a logical sequence of steps, is a highly effective means of handing someone a proverbial scalpel.

In my experience, most people cannot break things down logically nor do they appreciate what it takes to provide clear instructions. There is an emphasis in the world on communication which is a fine start, but being able to convey an idea clearly really only becomes helpful once you understand the idea clearly.

Besides programmers and mathematicians, the only people I've met with the faculties to properly break things down are lawyers*. Law school trains you in the ability to approach an idea from different angles in order to identify attack vectors. As such, lawyers tend to be highly capable of feats of logic but are equipped in such a way that they are almost entirely adversarial and deconstructive.

So while I completely agree with Chris's point and understanding that this is a banner he raises constantly, I'm a little disappointed to see him attack this initiative to get more people into coding. I'm all for better modeling tools and better teaching practices but I think teaching people to code is a wonderful solution in the interim. Framing an argument like this will only stir controversy in an otherwise worthy cause.

edit: I've met plenty of people who aren't programmers, mathematicians, or lawyers that are logically capable. But as a general rule of thumb, those are the only three professions I've interacted with personally that have consistently shown that aptitude. Either way, please don't let this personal anecdote distract from the overall message, I only left that comment in there because I wanted to emphasize how rare the ability is across most disciplines.