I'm guessing this post is a direct response to "Design is Horseshit" (http://yongfook.com/post/14295124427/design-is-horseshit), which was on HN earlier.

It appears that the author of this post has taken the original article and simply replaced 'design' with 'engineering' the whole way through it, thus the unusual characterisation of engineers as "expressive creatures" you point out.