What? I imagine there are many, many auto manufacturing VP's who think, "I don't know anything about engines and drivetrains and all that technical stuff [– and I don't need to]."
Why should the VP of Human Resources need to know how a drivetrain works? Or the CTO? Or the CFO?
They are experts in their area focus. It's ridiculous to expect every manager to understand everything about their business. Would you expect the CTO of Starbucks to be able to tell you how all of their drinks are made?
I wouldn't. And I wouldn't care if they could.
In general, a good executive doesn't need to know the minutiae. They need to know how to motivate people, how to keep projects on track, how to recognize talent, how to delegate, how to budget, how to distill information for other executives, etc.
Sure, knowing the minutiae usually helps. It's easier to sniff out all the BS people feed you, etc. But it's far from the most important knowledge and skills a great leader needs.
I've only skimmed the article so far, but the part that stuck out to me was this (technical manager talking to the VP):
“My people are split on platform,” he continues. “Some want to use Drupal 7 and make it work with Magento—which is still PHP.” He frowns. “The other option is just doing the back end in Node.js with Backbone in front.”
Now, that's an example of a terrible trait for an executive. TMitTB clearly has very little ability to communicate with people outside of his area of expertise. The ability to convey complex ideas simply is crucial. Why would a non-technical executive care about the framework you're using? That's asinine. Worrying about the implementation is TMitTB's job. When meeting with the VP, TMitTB should talk about the business impact of options. This option is cheapest but doesn't give us these features that the marketing department says they must have. This option is best, but it's much more expensive to hire developers with those skills right now.