It's a nice animation, but for such a significant anniversary - and from a company like Apple - I expected a lot more hoopla and content. This could indicate that there wasn't a lot of planning involved, that it wasn't a high-priority item, or that Apple had enough people with time to focus on it.
It's almost as if someone near the end of a meeting said "Oh crud, we've got to do something to acknowledge our 50th anniversary - can someone put something together, and quick?"