Here's a secret about superalliances: Most of the time, their armies suck, and they use intimidation to get their way. Not to mention, coordination through several alliances and several members isn't easy, and they tend to fumble and flail around blindly more often than not unless they have a really superb coordinator/s.

While they can still be a threat for younger or inexperienced players, a single alliance of people who know what they're doing can knock the typical superalliance on its heels.