The article contains a "just so" origin story, without any proof, but with a lot of social cues and nods to authorities that are likely to be unquestioningly trusted by the target audience. An actual mythical origin story is told, with lots of handwaving and name dropping, about how we lived in tribes and needed to signal our membership.
Then, in a giant logical leap, the hand-wavy "just so" origin myth is presented as the true reason why we don't have a strict adherence to "facts" as the author thinks we should.
The proper way to understand why facts don't change minds, is to understand that there are no such things as "facts". Our minds carve out blocks of meaning from the sea of chaos in front of us. There could always be a different way to carve up what lies before us. This is not to deny that what in front of us is real, or to claim that we can make up whatever we want. Not at all. But it fails to understand that the reality we see is much more like a mythical or narrative structure at its base. We are completely integrated into it and can't separate ourselves from it.
You can see that what I'm saying is true, by simply examining the article itself. Although it purports to be about "facts", the article is a narrative. It even has a mythical origin story from beyond the mists of time which can't ever be "proven" using "facts".
I don't know what use the article is. Perhaps it can make a certain type of person feel superior as they sit at the family Christmas dinner and silently judge their relatives' differing beliefs as being somehow inferior because they don't meet this imaginary criteria of being "fact" based. How do "facts" even motivate a "fact based" person to want to change someone else's ideas?
The slightest amount of critical thinking shows that we are all deeply immersed in narrative, value judgement and goals. This false concept of "facts" is merely a weapon for a certain worldview in its attempts to coopt other worldviews.