When the bar are languages like F#, Haskell, Elm, Reason... How can JS be considered good? All languages have warts, but JS is a language full of them, ambiguit

When the bar are languages like F#, Haskell, Elm, Reason... How can JS be considered good? All languages have warts, but JS is a language full of them, ambiguity is the name of the game, mutating everything is encouraged and global mutable state is everywhere. Very little has changed for JS outside of syntax, the core is still rotten.