And I believe it is. It does not support every single feature that jQuery and MooTools have, but you probably wouldn't say that jQuery is not fully featured because it lacks support for Cookies and color animation.
It's true that Minified doesn't support many features in the same breadth as the other libraries. Instead the focus is on making the essentials easy (often easier) and offering you powerful functions to do the rest. Basically that's how I keep both API size and file size down.
