@Rushwheel
Take Pudding, also the daughter of a yonko. She played a significant role in WCI and was foreshadowed all the way back at FMI. Close to 200 chapters ahead of her relevance. Oda knew she'd be a key figure of the arc and so he set her up in advance. He even gave away the 3rd eye reveal.
Meanwhile:
- Yamao gets no mention at Punk Hazard. (Could've had her watching Luffy during Ceasar's experiment along with Jack's men).
-No mention at Dressrosa in Kaido's intro
-No mention at Zou when we saw Kid bloodied and defeated (Could've had Yamao sharing the cell with him, to set up an early meeting with Luffy in Udon)
-Not a single mention throughout the first 75 chapters of the Wano arc itself. Despite the fact that she's an infamously rebellious daughter whom all the beast pirates knew about