The major concern is just represented by the NPCs. Don't eat the menu and don't drive on the map, please.
What these NPCs represent is that a government system is more than the label on the palace entrance. Changing a country from communism to capitalism is messy. From monarchy to democracy, usually bloody. From democracy to dictatorship, often twice as bloody. It's not something that happens in the palace, or even in the capital. It involves not just the government and the nobles, but everyone working for the government, from the ministers down to the lowest clerk.
A government system is a lot more stable than any particular government. A monarchy easily survives a hundred kings, and a democracy can go through a civil war with nobody questioning the democratic principles per se.
That is what we simulate in the game by simply not having a "change your government system here" button. The government in BM is only reformed after breaking down entirely. Throughout real-world history, that has been the normal case, with the peaceful changes like east germany being the exceptions.
I won't rule out exceptions entirely. But they need to be exceptional and that's why I asked this to be brought to the attention of someone who actually knows what's going on in-game, because I haven't played BM at all for a few months now.
I agree.
But let's take stock here. Every single non-Astroist left the realm. Astroists who left have returned. New Astroists have arrived. The ruler is an Astroist priest. The Triunists seceded to form two Triunist realms. Terran has been legally a Triunist/Astroist realm for years. With all the Triunists seceded, it's logical to say we're Astroist (which we've done).
We haven't just changed a label. We've gotten rid of all the republicans and Triunists. We've dropped 90% of the realm. We've brought in new people. We've even had street-fighting between various factions in Terran during Quintus' last days.
The government system of Terran has failed. Everyone in game knows it. It's been renounced by literally everyone who has the ability to do so. I really don't see why we should have to RP a theocracy, as Indirik says, for years to get a change that has clearly already happened now.
See, here's the thing. You're right: government change involves more than the palace. Usually. But Terran
does not exist beyond the palace. We're one city (well, just conquered a townsland, but it'll probably starve itself rogue. Literally every single position is held by one man (Hireshmont). Many of the city officials have already been purged due to Quintus' treachery. Others would have fled with the Saffalorons and the Phantarians. We've had bloodshed and messiness: it just didn't have the game label "rebellion."