Even though I was writing off this event, I'm going to complete the quest line in my main world. Future Forum goers may use this as evidence of my poor planning if I ever complain in a future event about not having enough sectors for the quests. As I'm want to do.
Thanks to DCs, I have 2 Sakura rocks & a Pond. Thanks to the quest line, I'll have an Emperor's Entrance & a Gong. Thanks to lucky lanterns, I have a gong, Emperor's Entrance & Sakura rock upgrade. I was hoping for a Zen Zone upgrade, but my luck wasn't that good. Looks like I will also be just shy of the second Blossom reward, which is another 10 sadness points.
Overall, I'm giving the event a rating of: Meh.
The Ninja/Kitsune profile pictures bump it up to a Meh+. Especially since the nature of the event may make those pictures 'rare'.