It would appear that this article is thought to be interesting by some, and inappropriate by others. That's part of how HN works.
So we have a situation where there are at least 3 groups of people. 1) the social justice academics. 2) the social justice activists and 3) the anti social justice crew.
The academics have nuance and subtleties in their research which are often removed by the activists. The mob doesn't write papers. No mob debates.
These different groups are the reason why some people say that the idea that the universities are full of anti-truth religious purist moralists is a conspiracy theory.
They'll debate strawmen, only -- undergrads, unsophisticated public, and similar.
To be clear, that's not true of all academics -- just this group.