The war isn't even a decade old to Sirians, and the system's only been occupied for 7 years, but sure. Let's go with that.
The argument here isn't that it's dev bias or that Gallia is op or that we should delete herobrine or some nonsense. It's assuming that every faction in Sirius is going to accept that the star charts suddenly changed to display 'Brittany and Aquitaine' instead of 'Orkney and Edinburgh'. Leeds has been Agincourt for about as long as Edinburgh has been Aquitaine, yet it's not been renamed even though it's been occupied by Gallia for as long as there has been a ZoI for GRN in California.
EDIT: There's also the vanilla thing. Yeah. Vanilla is sacred.