I read the summary and thought that this article might be on to something, but on reading it I don't think the author really understands science at all.
Here are some excerpts that I find particularly disagreeable:
"Science is not the pursuit of capital-T Truth. It's a form of engineering "
Absolutely not. Science is indeed in pursuit of Truth. The author criticizes Aristotle's form of "research", quite rightly, but then throws the baby out with the bathwater when he says this.
"Because people don't understand that science is built on experimentation, they don't understand that studies in fields like psychology almost never prove anything, since only replicated experiment proves something and, humans being a very diverse lot, it is very hard to replicate any psychological experiment."
This is factually incorrect. There are many Psychological phenomena that can be reproduced reliably. The Stroop effect, the Simon effect, visual illusions..
"What distinguishes modern science from other forms of knowledge such as philosophy is that it explicitly forsakes abstract reasoning about the ultimate causes of things"
This is completely incorrect. A core goal of science is to understand the cause of things by developing abstracted understandings of them (i.e. theories).
I know nothing about this author, but from the article, I suspect that he is trying to reconcile his beliefs in science and religion by convincing himself that science cannot answer the big questions, it's just for making airplanes and computers. I could be wrong of course (--- very important scientific principle)