We know because when Disney finds their content on Youtube they have it removed, they don't compromise their premium channels for the pittance in ad revenue the

We know because when Disney finds their content on Youtube they have it removed, they don't compromise their premium channels for the pittance in ad revenue they would get from pirate garbage. The uploaders get through the filters with really strange editing tricks, cropping the screen and editing random bits together. It's not a level of quality that Disney would like to have associated with their brand in even the most unofficial way.