Nope it was 1 week last year too
To all the complainers, This game is easier now then it ever was and WC have done an amazing job creating a wonderful game and if they did events all the time it would not be an 'event'. Stop complaining and be grateful for the bonuses.
2x is a permanent thing so really the rates will be 6x this event and as for reduced baby food consumption, the increased breeding rate will dramatically reduce the amount of food your baby will need to mature.
Thank you WC for all the wonderful work you have done for us and looking forward to another great event.