Haha, what kind of player picture is that.

Anyways, I guess you could make a mod to do that but I don't think that's a feature the game needs to have. The reason only the Vasari have it is quite simple, to make the races more unique and because it fits them better.

Further, I advise that the Devs add custom map sharing to Sins of a Solar Empire: Rebellion.

The Vasari Returning Armada ability was heavily nerfed when Entrenchment was released.  You don't see people use it too often anymore, at least in online multiplayer PvP games.