Several reasons:
- You can't have 1 daily that pops up every day, that would be sooooo boring
- Some people like different looks in there town, 99% of the players is NOT a powerplayer who only looks how they can build there city as powerfull and effective as possible
- 1x1 buildings are awesome, even if there statistics arent the best in the game. you can't place a 5x5 building in every nook and cranny, but you can do that with a 1x1 building. some buildings are just awesome because there size fits just your needs.
I mean that some buildings have weak population ratio per 1x1 like Phoenix Cult has around 390 ratio per 1x1 and Venar's Rocks III have almost 500 pop per 1x1 square, what's the reason of such difference in buildings, and what's the reason of introducing entirely new dailies which are mediocre at best like this Phoenix Anatomist, Ghosts of Past, Present and Future etc... They are all one building with mediocre stats and different looks cause it's always 367 pop per 1x1 square for them...
Wouldn't be better if all these buildings had similar ratios just for us to choose what look we prefer? Like give Phoenix Cult same stats as Venar's Rocks III and Crab Hotel same stats as them - then you could choose what look you prefer and not worry that Hotel is weak, Cult is mediocre, Rocks III are best etc...
The way it is now, if you care about population you have 4 choices at the moment
1. Father Tree of Candy Canes
2. Winter Star
3. Igloo Festival
4. Venar's Rocks III
These are 4 buildings that still appear in events (there are better but ceased to appear after 2017) and have 500+ or near 500 population per 1x1 square.
all others are much, much weaker... Halloween 2019 building is 412.5 per square, others are 367 per square... Not much a choice because of that.
Why no phoenix daily with around 500 pop per square? Why no autumn one? Why only christmas has best ones and then 1 is from early summer event?