The thing is I want to call your examples exaggerated but they're simply manga facts, no one can dispute them. Oda was walking a very thin line with Kaidou knowing he was falling early he left room for discussion, Kaidou has some great feats but he's definitely a major fraud in the sense that he's not the undisputed top 1 (and his character is a contradictory mess, you want to die but you are hiding from top tiers in Wano your entire life, you panic at the sight of a top tier approaching your territory?, you hid from Oden for years under the same roof?), Oda didn't commit to that bit at all.