Wait, are you saying the reason the backstory for Josuke’s hair was never brought up again was because Josuke’s hair’s camel got its legs broken by Gyro Zepelli and so Josuke’s hair was forced to withdraw from a horse race?

Or are you saying the reason Urmd was never brought up again was because the whole point of Urmd’s backstory was to explain why he got so upset when people insulted his… camel… so if time travel was actually used to make him be the original… camel owner… that would defeat the original purpose of the backstory and not actually explain why he cares so much? Why is it so hard to accept that maybe that person was just a kind stranger and not… Urmd from the future?

Obviously I’m being facetious here, but seriously, both is these are explained in the story, neither one is an “Araki forgot” moment. It really bothers me how many people don’t realize that if Josuke really did go back in time and was himself the reason he cares so much about his hair, that literally defeats the entire purpose of the flashback to explain why he cares about it. If it’s himself, then there is no origin, and the flashback is pointless.