This sort of thing has been going on for some time. Disney's Fantasia has been excised for many years. They held off on having it available in any consumer format (aka VHS) and when it was, there was one scene in particular that had been drastically altered. In the centaur girls and centaur boys scene, one of the girls had, in the original, a servant that was an obvious racist trope, black face with bows. You can find stills of it here and there. In all of the versions I've found, they zoomed up on the pretty centaur's face.

Don't even get started with Song of the South.