My way to assess candidates differ from the style the blog describes, but of course I do some kind of technical screening. From my point of view, this blog, obviously, just describes the view of the candidate. And maybe this person is quite good at his job. But you have to consider, that you get a lot of candidates who can't get things done. I screen candidates who want to do a PhD in computer science but write code like we are 20 years or more in the past. I get candidates with a degree in computer science who do a little programming task that won't compile at all.
What I want to say is, don't underestimate the sheer number of people who apply (or get brought in by recruiting companies) who, to be honest, cant develop software that's a little more complex.