That's how it theoretically works as a free service where all users are equal. It's not difficult to image a tiered subscription model which finds a sub-optimal

That's how it theoretically works as a free service where all users are equal. It's not difficult to image a tiered subscription model which finds a sub-optimal 70/30 split more profitable. It's also important to note it's optimizing for time, not fuel usage (a shorter path may require expensive elevation changes, for instance), traffic noise for neighborhoods, safety, services access, etc.