@Owl II please read more closely what you've quoted. I was mentioning players who are still advancing through ages with lots of event buildings consuming one up kits. By definition those cities ain't empty. As an empty city lacks event buildings that consumes one up kits. So, good April fool's joke but a bit late for the time of the year. Also players who still advancing through ages might be oceanic future or SAM players. In your statement it's kinda like saying with the quoted text that those players are also considered "beginners." So, are only end game players no beginners? Because than "the rest" you imply are basically all players who ain't end game players and thus an huge player base and if only 1 of them place it your statement is false, isn't it? On Beta the statement is anyways false because it's even build in SAV city and in other non Bronze Age cities. I'm not sure how that works for you but in my observations cities ain't empty before becoming end game and magically appear fully established once there end game. I guess in your bubble some dark magic is at work. Also the statement is false. As even in an SAV city on Beta it's been placed and not even fully upgraded. Pretty weak statement.
Anyways I don't believe that less established players won't take an opportunity to get daily an decant amount of goods and while still advancing through the ages an chance to get a monthly one up kit. In particular those who play relaxed and don't care about efficiency. They'll probably happily picking it up for those reasons and happily boosting their supply production. Just because they don't appear on this forum and in this discussion doesn't make them not part of the game. From my observations on the live servers even half way upgraded event buildings are even in Arctic Future cities present. So, yeah looking outside of the bubbles I'm sure it'll be build a lot. Perhaps not by the pros who care about maximum efficiency and military bonuses.