Katakuri lost once = didn't get demoted
Cracker lost once = didn't get demoted
but Snack loses
ONE time to Urouge and he IMMEDIATELY
loses his rank? Wrong.
it would only be because he had previously lost against someone else too, making it the second time.
It also explains why he has a grudge with the Worst Generation in general and not just Urouge specifically...
Snack fought both Urouge and Kidd, and lost. The latter fight didn't get reported however and was kept secret.