He was weirdly hostile with her when he met her, it always bothered me. Its like he sensed something wasn't right, whether its due to her being Kaidos daughter, her obsession with Oden and her identity crisis?
I still think she deserves to be on the crew along with Carrot, but Oda is too much of a coward/too lazy/too sadistic to make it work and do whats needed and what they deserve too. Hes doing the most awful, laziest, insulting writing but most of the fanbase will still unironically call it peak fiction, a masterpiece and offer their bodies to him.