Maintaining game balance? In what? Plarium's favor? Because there sure was nothing done in the players favor and in this so-called event which is a complete ripoff and a total waste of time!
How so and whatever do you mean you might ask?
Well since you asked, I cleared all 100 available red and green pp camps up to and incuding camps #350 then refreshed my pp camps and did another 27 and again cleared all red and green camps up to and including #'s350 for a total of 127 persian camps taken down.
I had already cleared the 5th hideout along the way and by the 71rst pp camp hit , after which I still had 55 articles in stock and needed only 1 and the always amazingly elusive article 4 to be able to hit the just the 6th of 20 hideouts and for which just as amazingly no one in all of sparta had 1 article 4 to trade for any of my other 55 useless articles.. I finally got the 1 needed article 4 after hitting the last #350 pp camp and 127th pp camp to be able to hit just the 6th of 20 hideouts.
And now I again have 55 useless and untradeable articles and need just 1 article 4 to hit just the 7th of 20 hideouts. What a joke....