You realize the statements you've quoted are a 3-sentence tangent that has nothing to do with the point of the article, right? There's another 1500+ words that don't rely on this being true or not.
Secondly, I didn't say technical expertise is worth "nothing." Of course it's worth something. But as developers, we need to realize that, except in rare exceptions, our code is worth a lot less than we think it is.
That's great article you have written and I personally really liked it. I will even take some ideas from it. I think you shouldn't pay to much attention to people who take everything as personal insult and fail to see behind their personal world.
Secondly, I didn't say technical expertise is worth "nothing." Of course it's worth something. But as developers, we need to realize that, except in rare exceptions, our code is worth a lot less than we think it is.