Earlier quoted context omitted.
Quite a few of those stats seem suspect. For example, I personally find it hard to believe that "80% of professional developers" prize Javascript above all other languages. Seems unlikely based on my network (which of course is a representative sample of all developers).
Where did you get the prized by 80% from? I only see the "Most Popular Technologies" and it has JavaScript at 71% and it's not "prized": https://insights.stackoverflow.com/survey/2018#most-popular-... As far as it's popularity is concerned. It's not surprising the in least. If you have anything to do with web development you're going to have to use JavaScript. Making it "popular" out of necessity but not "prized".
Certainly, a front-end developer has a choice of compile-to-JS languages from which they can choose.