A further confirmation that maybe it's time to force the events, by removing a couple of "always played" maps, regardless the fact that they aren't the best ones. Don't forget that the wheel of maps should change from time to time, to incentivate new gaming experience.
From what I read, you want that the server ET Legacy play always the same 5 maps, and it's ok to change the less popular ones, and keep the most voted. For sure no one will recognize the difference, before and after the map pool change.