The idea is that this feature could be part of a 'Beginner mode' option.
Rebuttals:
Lack of controls (stop, pause etc) - the gif is smart enough to be simple and offers some sort of understanding what the command does. for more info the user will need to dig deeper. It's a teaser.
Uncomfortable to use and dispersive (see above) - user could disable the feature
Difficult to translate - hence the title of this forum thread has 'language agnostic' in it.
Might affect people with epilepsy - we make sure that gifs don't blink or flash at the user