It’s about having more latitude.
On Tuesday, you were talking about credits for cultural content. If we go in that direction, measuring over a week would become extremely difficult. Imagine that a host does a cultural segment on a Friday at 4:00 PM, just before the end of the compliance audit period. How many minutes is it? How do we account for that? All of that would become extremely difficult.
This example shows that a longer period allows us a bit more latitude to better provide what the listener wants to hear when they want to hear it. It also allows us to ensure predictability and compliance with our obligations.