Even this article IMO subtly demonstrates the mindset that leads nontechnical founders to not think they need a technical cofounder, by phrasing the search for one as “recruiting” as if they were a subordinate or code monkey. It should be a partner relationship, not a subordinate relationship. This mindset that technical cofounders are essentially “coders” (a term I hate) is very prevalent among inexperienced nontech…
That said, there are plenty of very smart, driven, people who are not software engineers who don't think of a technical co-founder that way. So it'd be wrong to paint with a super wide brush on this.