They are made to have a fresh reference point to be able to go back to and so that it could be fun for those who want to participate - in the coming weeks we intend to adjust the numbers in attack / defense ratio, based on your suggestions here in the thread
If this is just a "test" Awesomia battle that isn't linked to event rewards, most chars won't participate and your reference point is moot. 10 chars attacking against 50+ defenders is useless.
On worlds that bring less than 70 chars total (attack+defense) the max limit doesn't really matter. Colorado(?) and Kansas(?) issues don't apply to Arizona, Briscoe, Dakota, El Dorado, Fairbank, Galveston, Houston, Idaho, Juarez. 9 servers of 11 can't even fill both sides of a large battle, probably not a medium, and maybe if stars align and miracles happen, a small is filled. We don't know if having 50 chars on attack will help because there aren't 50 chars available to be online, skilled for battles, and ready to go. Having a test in a large on 9 worlds is just laughable.
Address the spread of characters across too many worlds, and then expanding the limit of attackers/defenders the might be a real problem. (or open a new one and spread the issue even further)