At least partly that is about being topical for their audience. What I am trying to point out is that just because it is written from a different perspective or for a different audience doesn't mean that it is wrong. You and I might dislike things about Hacker News, but by being here we have accepted those things. But when they write about Hacker News, they don't have to fit into the Hacker News narrative like we do. They don't have to avoid calling out what they see as bad or find what we see as good.
That certain topics can't be discussed because they disappear from view is a defining characteristic of Hacker News. But on Hacker News it has always been justified by it not being moderation. "It was flagged by users" is the common explanation. But for someone coming from the outside, that isn't blinded by internal politics, it doesn't really matter as the result is the same. The same is true of other dogmas or faux pas. For their perspective to be damaging it has to go beyond valuing different things.
The other reason I have a bit of a hard time seeing it as judgemental is because they provided a lot of space for other perspectives (and even link to discussions). And those perspective seems consistent with the different positions. The article for example does not only address your perspective on the moderation, but conclude with it. They specifically and at length talk about the style of moderation and mention things like dead comments. You might even say it is the entire premise of the article.