How come each faction doesn't own a continent?

[Resolve]

Each faction could own a continent(1 foothold per continent), and each continent could have 2 warp gates that go to the other continents. This way it'd be possible to lock an empire from a continent but they'll still have their home continent to plan another attack/defend from invaders.
I think the only downside to this is that you wont be able to play on any continent at will if your empire doesn't have a base on it.