A station representing days or weeks of effort by a large group of people shouldn't be able to disappear overnight. I hope Starbase is respectful to its players, particularly the defenders, by making sure that conflict happens between people (not player-vs-door) at a reasonable time of day that everyone can participate in and enjoy. At the same time, I hope there are sub-objectives (satellites, capturable mines, or other assets) that can create interesting smaller-scale conflicts with lower stakes around the universe and provide fun without the full "we just lost everything, might as well disband the guild and quit the game" cost of losing a complete faction station.
Most importantly, this is a game, not a job. People aren't going to stand around on guard duty watching an empty hallway in a station all day. They aren't going to fly their ship around in circles patrolling empty space for hours watching for attackers. That's boring, and it's an unreasonable expectation. Those things should be automated or systematized so people can be off enjoying the actual game, but still have time to come back and engage in whatever conflict arises.