Oda spent a long time hyping up Wano Ninjas as being a big deal, starting with Kinemon assuming That Nami is a Ninja from her weather control, to "Every Boy loves Ninjas", to Fuku being Treated Like a major actor in this arc, to Robin remarking how deadly they are, to Zoro calling them troublesome to deal with
Yet when Raizo finally delivers on that hype this fandom pretends that it's an asspull