Earlier quoted context omitted.
The arrogance in it, though, is that because people who like JS are "obviously" wrong, the reason must be that they don't know (enough) other programming languages or don't know them well enough. I have used a number of different programming languages before JS, a couple of them more extensively and for a longer time than JS. I like JS. I understand its flaws. I also understand that all programming languages are terr…
First, X-only programmers are obviously wrong, whatever is the value of X. That said, yes, somebody ought to love JS in a not blind way. Big numbers work that way. If that's you, I don't think those comments are for you. All languages have different flaws, every flaw relevance varies by context, and contexts are incredibly subjective. Yet, some contexts are much more common than others, and many people preach in supp…
I've seen enough different use cases and teams and programming languages to understand there's no point in being arrogant about language choice: if a team already knows a given language, it is most likely the right tool for the task, unless the benefits of replacing it are worth the overhead of properly switching to and gaining competence in another language.