Oda has the story with Bonney and Kuma finished, now. This is the time, when he turns to the main problem of the arc: Vegapunk, Shaka and Lucci (Who has not been seen for several chapters, and is not even shown in his "fight" with Zoro.). And look - Oda is again turning to the problem Vegapunk has.
Fact is: Vegapunk having such a tremendous fear of Kuma hurting Bonney (father hurting his child) means that Vegapunk has in some form been the one, who (as a father) had hurt one of his children in the past. And now, he is regretting it and fears that someone else has to go through this experience. There is a good possibility that this child was Lucci. This would explain, why he does not like Vegapunk in the least, like he hinted at in chapter 1062.
Fact is: Vegapunk having such a tremendous fear of Kuma hurting Bonney (father hurting his child) means that Vegapunk has in some form been the one, who (as a father) had hurt one of his children in the past. And now, he is regretting it and fears that someone else has to go through this experience. There is a good possibility that this child was Lucci. This would explain, why he does not like Vegapunk in the least, like he hinted at in chapter 1062.