I've got a flag for every nation in my home (sans Tavnazia, but that's a different story...), why didn't we get an Adoulin flag?

Is it because we're out of room? I don't have room for any more flags, but there are 4 blank spaces (sides of fireplace/fountain, sides of door) that could accommodate this.

But long story short, I want an Adoulin flag, and I think we should have gotten one at the end of SoA.