Well the author is not exactly an expert, is he?
"Snow White's Scary Adventures, Magic KingdomThis attraction, one of the last remaining from the Magic Kingdom’s opening four decades ago"
One of the last remaining attractions? Haunted Mansion, Jungle Cruise, Tiki Room, Swiss Family Treehouse, TL Speedway, It's a small World, Peter Pans Flight, Mad Tea Party, Country Bear Jamboree, FL Shooting Gallery, Riverboat on the ROA, Tom Sawyers Island, Hall of Presidents, Dumbos Flying Elephants (they are still there, only doubled at a different location), Carousel of Progress, WEDWay Peoplemover, Cinderellas Golden Carousel, doesn't sound like the "last remaing attractions" are exactly a small group.