Everyone reacts badly to this when they first hear of the concept. Then at some point you realize, that you actually don't like the scripts that won't fit too well to this. It's like a fashion sense, hard to describe the thing.

A friend of mine, when he heard about this in the class, argued "but I want to create something unique that doesn't fit to this or anything else, like... the Matrix!". The professor was speechless for a moment but could keep his calm :)