I'm fine with politics being a thing in entertainment (this game included), so long as they are contextually appropriate. Much of this game's world and cultures are derived from real-world history and culture; given I clock the approximate time period this game is set in to be 1800 - 1850, the pro-democratic and anti-imperialistic tones are fine with me given they parallel what happened in the real world.

I don't like it when a piece of work is used as an excuse to lecture audiences on contemporary hot-button political issues; not only does that make the work very dated, viewers will either agree or disagree with the message it's sending. They're either preaching to the choir or making people roll their eyes, in other words. While entertainment can be used for political posturing, I don't like it when that's the main point of the work; no matter how strongly held the beliefs of the author(s) / producer(s) may be a piece of entertainment still needs to be, you know, entertaining.

The only case I can see of socio-political commentary being a little too heavy-handed for my taste is Yotsuyu's character arc, which is a scathing critique of how orphans are treated in Japanese society (and to a lesser degree Japanese society in general). Well that and the Save the Queen questline ("You thought Bozja was a fairly-governed democracy, but gotcha! It was really a highly-stratified caste system run by ubiquitous Corrupt Bigoted Nobles™!"), but I don't hold that against the game's usual writers because... Matsuno, who is well-known for that.

(P.S. I don't have a problem with the anti-imperialist undertones and don't see why the writers wouldn't be "qualified" to use them, given Japan's own sordid history with imperialism.)