I broadly agree with the author’s point there, but disagree with the specific language he used. In my view, engineering includes those pesky non-technical considerations, like the business context and the human factors, which bring their own tradeoffs and priorities to the engineering decision-making.
That is, his “pure engineers” are not really doing engineering, at least under my understanding of the term, whereas (some of) the impure engineers actually are! :)
Pure engineers deliver perfect and fast software somewhere along the Black Hole Era. Not quite heat death of the universe, but almost there.
Impure engineers deliver "working" code in a deadline, for an arbitrary definition of working. Basically, The Worse is Better™.