To be fair this clip is produced by the Disney studios, master storytellers at the height of their craft. The Mickey Mouse animation seems to have been produced specifically for this clip, and hand-drawn cell animation is very labor intensive, even if it seems simple. Just realize that every frame has been drawn on paper, inked on celluloid and painted by hand. In short, this clip has been very expensive to produce.

(Not that I necessarily disagree with you, just to point out this is a state of the art instruction clip with extremely high production value, not just some random youtube video.)