So, I decided to give a realistic suggestion as to how to make the Feitoria more balanced. This comes off to me as an odd decision, not only because it isn't a real solution to how Feitorias work, but also because it's a nerf to one of the civs with the lowest win rates of all the game without any compensation elsewhere in the tech tree or bonuses.
This is obviously an attempt to nerf the Feitoria spam in water maps or other low-resource maps in late game allowing the enemy to snipe them more easily. In the last October patch, they reduced the HP of the Feitoria fron 5200 (a bit higher than the base HP of a Castle) to 2700 (almost half the previous HP).
So far, the changes the developers have given to 'solve' how the mechanics of the Feitoria work have been pretty underwhelming in the opinion of the majority of players (I assume given the large ammount of anecdotical evidence in forums, and opinions of many professional players).