The survey was run as a login poll. If you happened not to log in at all during the 7 days it was running then I'm sorry you missed it. If you did log in but missed it, then that should go a long way towards explaining why we do not run polls frequently: Polls are intrusive and when run frequently players become attenuated to just closing them rather than responding.
On worlds that can be expected to fill battles, we can help with balance by adjusting the caps in response to the meta. Generally speaking, when attack or defense is winning practically all of the battles, we can reduce the numbers on one side and increase them on the other to give each side closer to even odds.
On worlds that cannot be expected to fill battles our options are limited to massively reducing caps so that they will fill (this has never been expressed as desired by any significant number of players) or, in the case of team declared Awesomia battles we can employ "join restrictions" that, through active management, restrict players from joining one side or the other at various points in time while trying to achieve a battle that has a turn-out where both sides have similar odds of prevailing. (success has been hit-or-miss, but simply attempting to balance this way does tend to lead to a fair amount of self-balancing)
We introduced this concept in the 2022 St. Patricks event
https://forum.the-west.net/index.php?threads/st-patricks-awesomia-battle-join-restrictions.60727/
We expanded it in the 2022 Easter Event
https://forum.the-west.net/index.php?threads/easter-awesomia-battle-join-restrictions.60757/
We then surveyed about continuing it via a series of forum polls
https://forum.the-west.net/index.php?threads/summary-of-join-restriction-survey-results.60815/
where most worlds opted in
In Feb 2023 We ran the survey again via login poll
https://forum.the-west.net/index.php?threads/join-restriction-survey-results.61288/
where most worlds opted in
In Feb 2024 We ran the survey again and that time all worlds rejected it.
I anticipate we will run it again in early 2025, if not sooner. This time around we will precede it with a "technology demonstration" (similar to the initial introduction in 2022), and I will work to improve the wording of the poll.