He forgot Usopp's observation haki too. Given how hell much Page 1 and Ulti gave them, they should have had amazing haki blooms too. Ulti was using haki at least from what I rememmber too. I really don't know what Oda is doing anymore.
Introduces a completely new demon form for Robin with no explanation, suddenly reveals she was meant to have learned Fishman Karate and other martial arts all this time and we still don't know what the fuck Asura and Diable Jambe/Hell's Memories are, how they work, why Zoro and Sanji can use them etc.
Fodders in the Marines and Yonko crews have haki but not most of the SHs who spent 2 years training to get stronger.
Oda: