I don't know if it's because I am sleepy or what but i had trouble understanding what exactly she did...#－.－)
She "acted" like the goat/milk was her action for the water crisis. Which is dumb, but in reality she use that plan to secure milk, wool, and livestock. She uses the goat plan to confuse the authorities.
Wait so they were like eh well theses people can live without water but sheep cannot so let's provide the water quickly?? Is that what it did?
Nooo. It's only a front. The fl acted like a dumb authority (replacing milk with water) to secure the goat for different purposes ie, wool, meat, & milk. They have separate plan for the water crisis which they showed in the last chapter, the aqueduct construction.
Since nobilities doesn't rlly care about the Homunculus and the fact that there is a political battle between the royalties, they must have look down at the princess dumb plan and let her did what she want since she's bound to fail with that plan and therefore will fail the emperor and fall from his grace.
I remember seeing comments abt how dumb the fl's action was in the last chapter for considering milk as an alternative for water. And like the way we actually fell for that stupid stunt of her,,, all i can say was it was effective LOL