The article doesn't say that "blogs are all good". It says:
> Start a blog. Post an interesting technical article to it once or twice a year—something you’ve learned, or a bug you’ve fixed, or a problem you’ve solved. After a few years stop bothering entirely, but leave the blog online somewhere.
That's all it says about starting a blog. It doesn't say blogging about any topic is good. It very much doesn't say posting about social and political issues is good. It just says that posting a couple times a year about technical topics is good.
My post was not wondering why I wasn't getting hired; it was a refutation of the article saying that blogs were all good.
Sometimes you can stand out in a bad way (in other people's minds).
I'm okay with this because I'm not a good fit for sterile office work.