I can understand that people may perceive VS Code and WebStorm as alternatives. Though, as rightly pointed out by the author, the former is an editor while the latter is an IDE. The whole post just says that in 10 different redundant ways.
What's your definition for an IDE that does not include VS Code? Just because VS Code feels lightweight, doesn't mean there is any fundamental limitation preventing it from supporting all the features mentioned in the post. In fact, as the author and others mentioned, you can achieve many of the same features with plugins in VS Code. Yes, WebStorm is better in the points mentioned by the author, and the JetBrains IDE…
I almost don't code JavaScript/TypeScript, it's not very useful in embedded work. I use VSCode, but I have no use for this IDE. This article is meaningless if you're not in the same niche as the author. While VSCode is an editor that is made for any language.