That’s the point of a sandbox. We don’t rely on DEVS telling us how to play and what to make our goals. No need for an expansion once or twice a year with some terrible grind clown content we’ll gobble up anyway because we’re addicted to the carrot on a stick type of game play.
We provide our own content, we create our own goals, WE decide what the next step is. All they have to do is create and maintain the framework that allows for this all, and restricting us as little as possible when it comes to any sort of player interaction.