Politics, everything is politics.
The same politics that avoided BoM, MI and Eston to make BBQ smacks with Barad Falas.
The Same politics that made Ser'quea seceded into Helmsdale.
The same politic that stopped Caergoth of firefighting the Empire.
The Same politics that made Suville join the Empire and attack Carelia.
That's people is how you win wars, give others what they wish at low risk and they will do what you want.
What? do you think i didn't received offers from the Empire when i was the Duchess of Strombran? of course i did! But sadly i play my main character as a honorable "For The Crown" noble, and wouldn't betray my realm, well one of these days i make a villain character....
But that is how is, you cant expect Tallerium or any other supporter to switch the winning side of you are not offering something better in exchange.
And as far i can tell, by the moment, the Empire have the good cards.
So again, stop complaining, rebuild, load and fire away.
Peace!