Word life, I give N6 Limited major props for pointing this out:
if there was a detour: your announcements were off
if the operator didn't have to make many stops (like on the 6 night car?) - your announcements were off (less distance without having to pull into stops).
If you've ever seen it, that's why drivers would play with the clever device interface and get the bus to the correct stop. If GPS was involved, none of that tedious button pressing would have to go down, it would just self-correct (like it does on CTA). Feel me?