Oda isn't providing any reasons why we should care about Rock's wife and BB. Cool, he has a family. Who cares? There's no background on how they met, it's off-paneled, and how Rock has this much knowledge on Imu and the WG.
Rocks couldn't care less about Roger's. Biggest rival my butt. Haha
Shakky being a nobody pretimeskip into this big shot out of nowhere is ridiculous.
Haki is shove down our throat too much. Logias, in order to hurt them, use haki. In order to hurt Kaido, use advance CoA/C haki. In order to hurt the GKs, use more potent Advance A/C haki. In order to hurt Imu and the gorosei. Gotta use peak tier ultra max A/C mass haki.