BATs / BNs are expected to be the ones to uphold the quality standards of what a ranked map is on their servers. Just as it as on Bancho, we do not allow the general player base to dictate what a ranked map should be. I also believe it's the job of the staff of the server to decide it's future. We are not Bancho, players can choose to leave if they do not like the direction we choose.
This system has been tried before for allowing generally players to pick maps for leaderboards (such as maps with 500 favorites being loved in 2016 on Bancho), but most of these systems created issues where maps of low quality were pushed into the ranking system.
In the past we held a vote asking if players wanted 2015 maps on Titanic, and the majority of players voted yes. I am hoping that the BAT team will become aligned with players on this. However players also want 2016 clients, defeating much of the purpose of a nostalgia, classic styled server. So we should not blindly follow players for what they want. Again we are trying to be a specific styled server, not Bancho.