The curse of the rainbow jersey, fact or fiction?

Reviews: Shocker - IMDb

Review: Did the 'curse of the rainbow jersey' add to the barren year of Stephen Roche? - Sticky Bottle

Is There Really a Rainbow Jersey Curse? - We Love Cycling magazine

Nantes fines Egyptian striker for refusing to wear rainbow numbers on jersey - The San Diego Union-Tribune

Christmas Research – Does the Curse of the Rainbow Jersey Exist? - We Love Cycling magazine

Julian Alaphilippe on the Curse of the Rainbow Jersey

The History of the World Championship Rainbow Jersey

Christmas Research – Does the Curse of the Rainbow Jersey Exist? - We Love Cycling magazine

THE CURSE OF THE RAINBOW JERSEY - The Breakaway

Does anyone know why this Gengar 5/92 has reactive shift not shadow curse? Came from a collection my bf had as a kid and we're not sure if it's fake? : r/PokemonTCG

The Curse of the Rainbow Jersey, by Graham Healy - Podium Cafe

The history and the records of road's rainbow jersey