Your argument circles back to the posters point. Knowing which rule you can break at a specific point in time. Why are you being so anal about it?

I think it's a worthwhile addition to highlight there is 3) rules which are sometimes red tape and sometimes to be broken, on top of the other 2 categories. It adds on to the original point with the addition of how to universally discover what the categories are rather than prescribe them up front.