Yeah i hate Events of this nature.

1. - You will get the rewards after the Event.
2. - Rewards aren't that good. You have to grind to 4000 dumplings just for those extra Ampys. The Gacha Seeds and the Coins are somewhat meaningless.
3. - Stamina / Event Currency Ratio is really bad. Well at least Phase 2 has Special Secret Gardens again.

I am at 955 atm. Well i only aim for 2000 Dumplings so it's not that bad.

It's funny. First time i ecountered this type of Event was back in September last year (Callas Event). Back then i thought the rewards stack with each other. After the Event was over i was really disappointed