I think all this stat !@#$-waving is dumb to begin with, so I'm loath to talk about it, but it really isn't surprising that an alliance that doesn't have any nations above C21 and have the vast majority of nations under C10 isn't dealing as much relative damage as alliances that have much higher average city counts. With tons of cities to support much bigger militaries, a range of enemies that have much more expensive things to blow up, and a tight-knit group of players that are very experienced in the game, that really should come naturally. That being said, though, I do agree that you and Voodoo are definitely punching above your weight class when it comes to stats, and that we certainly could do some improving.
Don't tell Jaden I said that though.