I'm moderately impressed, but I wonder why they would bother. I use VS Code as a powerful text editor and occasionally as a sorta JavaScript IDE. Java and .NET have fantastic IDEs already that are extremely hard to beat.
Your choices are (1) pay for IntelliJ Ultimate (several hundred) or (2) switch between IDEs or (3) abandon the IDE idea for both languages.
But I didn't interpret his comment that way. For me he wasn't saying that there's a better IDE Javascript than VS Code, but that there isn't any real IDE Javascript.
Which I tend to agree with. If we were talking about Typescript things might be different, but as far as Javascript goes, there's nothing on the level of what people are used when they talk about Java/C#/C++ IDEs.