I disagree with the armies that shouldn't be lost. As long as it's not a dragon,losing the army barely affects you because you can easily train them back.Does it takes time?yes but it's achievable and easy. There is no reason why someone would be afraid to use their lvl 10.
Also the storage right now it's fine but I wouldn't mind buying some ''banks'' to store more resources.
IGN ingame: Arkantos