I think the key is whether you consider an engineer a business person. That is what links most of the things in the article: a business person needs to know certain business things to be effective, and so if you're considered a business person you get told things like what the competive landscape is, what the budget is, and so on.

For me, the engineer is actually the only person who can do those business functions properly, if the business is solving new problems (rather than a cash cow). I tolerate people who aren't engineers, because I often can't avoid them, but once you get more than a few of these people in your business, things get awkward for the actual engineers.

I also tend to think of engineering as more than just coding. An essential part of it is communicating. You can't do that without technical skills, there's just so much friction.