No, actually I don't think the article is excluding CS engineers. He just says you have to learn how to sell and be entrepreneurial. If anything, he's addressing those engineers that think making an app is enough to give you success.
Apart from that though, there aren't all that many "other" professions where you can "just" invent something new and go and become an entrepeneur just like that. They have a higher entry barrier, so I do think the article is very much about CS, dismissing everything else just outright from the onset.
> there aren't all that many "other" professions where you can "just" invent something new and go and become an entrepeneur just like that.
The article didn't say to invent something. It said to produce value.
You can see lots of opportunities where that's possible by just going through any reasonably sized town. You may not be able to just start a refinery, but you can sell gas and/or repair cars.
