It’s not true though. We have Oswald from the 1920s. We have Mickey and friends. Scrooge and Daisy. All from before 1989. Beauty and the Beast and Jafar is from only two or three years after 1989.
But, it’s not just two characters from before 1989 though. What about Oswald, from the 20s? Mickey and friends? And Jafar is from just a year or two after 89, so is Beauty and the Beast