Kaido was a monster but he lacked a good backstory and flashback to have more charisma.Orochi was a well written villain,because he was meant to be hated.Just like Rachel in Tower of God.Both characters are pathetic and use other people skills to accomplish their goals.The main problems of Wano are not the main antagonists themselves,but the arc's pacing,fake deaths,asspulls and unfinished/dropped plot lines.These problems are present in arcs post time skip,Oda needs to give side characters the bare minimum panels to keep the story compact.Fucking Senior Pink got a flashback lol lmao