Paint The Night is a fresh, visually stunning and artistically impressive parade using a broad range of popular characters from Disney's and Pixar's biggest hits of the last 15 years, plus a stable of classic characters from the Walt Disney era of the 1930's to 1950's. It had a big budget and was plussed up with extra floats and performers for the Anaheim version compared to Hong Kong. It uses music composed in this decade and technology created in this decade. And it's a huge hit with audiences at Walt Disney's Magic Kingdom of Disneyland.
Those things automatically disqualify it with some folks from being an option at WDW.