Good article, but the reasoning is wrong. It isn't easy to make a simple interface in the same way that Pascal apologized for writing a long letter because he didn't have time to write a shorter one.
Implementing the UI for one exact use case is not much trouble, but figuring out what that use case is difficult. And defending that use case from the line of people who want "that + this little extra thing", or the "I just need ..." is difficult. It takes a single strong-willed defender, or some sort of onerous management structure, to prevent the interface from quickly devolving back into the million options or schizming into other projects.
Simply put, it is a desirable state, but an unstable one.
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