It's not really bad advice, it just has different implications in Javascript.

In other languages, you'd have a few dependencies on larger libraries providing related functionality, where the Javascript culture is to use a bunch of tiny libraries to give the same functionality.

Sometimes I wonder how many of these tiny libraries are just the result of an attempt to have something ready for a conference talk and no one had the courage to say "Uh, Chris, that already exists, and the world doesn't need your different approach on it."