It's not only about it. Safe harbor can be given by any dock-able object - if one don't want to give a blue to the enemies he may choice to simply dock at station. The excessive firepower is not needed for the whole process, in fact, it don't promotes people ,actually, to dock or to fight but rather to stay undocked while having his tail to drop the chase because of stationary object's fire.
As I said I'm not staying on this and moves on to some more conceptual idea - this 'comfort zone' concept is destructive to activity because people are getting used to stick around those zones and don't moves on to some other areas because there are comfort zones of their opponents and they don't want to be in disadvantage from the start.