They sound like "argument by prestige". If MSDN says it, or some famous developer or author whom everybody likes says it, it must be so.

According to Google (not that they are the end all of browser knowledge)

But because it is espoused by so many leading members of the JavaScript community, scrutiny is all too rarely applied.

It’s written by Sindre Sorhus, whose npm profile is enough to make all but the most prolific developer feel wholly inadequate, and so carries with it a degree of authority.

Despite their awarded diplomas in the art of writing, you'd be surprised at how many editors and journalists in the United States make English mistakes. For instance, "an" is still often coupled with words that begin with an "H" sound, even though this is improper. I'd advise against treating material from news sources as if it were error-free or even a higher authority on grammar.