The idea that the officers are talking over Coruscant about that the senate has been dissolved makes a sense of narration that the station is over everything and makes its presence above the law and senate decisions.

Have tho so intense traffic going in and out of the planet (galaxy's core) the news of the station should travel rather fast so the station

At the end being hidden and then decide to destroy alderran instead of Dantoine makes the demonstration of its power to maximum capacity rather be in the center of all the eyes.

-Angel