Originally Posted by
mitamata
I feel doing this with birthday decorations was a bit tacky, but nevertheless, Nick is right. There's still a birthday event and a birthday deco that comes with it. The decos in the diamond packages are extra. Instead of seeing it as "you must pay to get the decos", look at it as "if you buy diamonds, you get a cute little bonus with them!" They are a business, they are allowed to try to promote spending money on their product. But yeah, this would have gone over better if it wasn't marketed as a birthday present or something and if there was a bit more to the global event.
At least they're just decorations. You don't need them to progress in the game, they don't give you anything, they just make your farm look a bit different/better. Imagine if they offered a special milk producing tree or something that way and only that way, now THAT would be terrible!