Why did Wuwa feet sell more?

they are both girls they both focus on feet, why did one sell more than the other?

>>539672838
She made .08 today so she's still on track to lose to Lighter

also I'm 100% certain ZZZ will have another Yuribait patch like AstraLyn YuzuAlice

these have been the most successful banners that the game has had that aren't the anniversary
they are going to play it safe after Seed

>>539633553
Seed flopped