The Treasury is not fortified, but you will lose a small percentage of it if you are attacked by enemies, so you will still have to keep your eyes open for that. Matchmaking is always an issue in games like this and according to the update log, this will be addressed as well as other glitches that have been reported.
The Loot Cart is going to be allowed for each base and this will be your prize for having a solid defense. This allows you to get some of your money back should you be robbed by an enemy. The update notes that it will be around twenty-five percent. This way, you are not cleaned out all the way and you are able to get back into the game.
The overall economy of the game is also in question and that is likely where the Loot Cart and Star Bonus features have come into play. Once the update goes out and the players have it installed, reviews are likely to be posted online about it.