Naturally, this area is a major photo spot and is often crowded so some guests just pass it by as they rush to get a FastPass or to hop aboard Pirates of the Caribbean; but during your trip, I highly recommend that you take some time to brave the crowds and investigate this area. It truly is "the hub" because it pays homage to the very man, and his accomplishments, that helped build the park that you're enjoying with your family.
In this case, it truly is not only the hub of the park, but of all of Walt Disney World; and if you take some to explore it, you will find the very purpose of the park.
"We believe in our idea of a family park where parents and children could have fun together." -Walt Disney
I think that philosophy is a major contributing factor to Disney's success and is what sets it apart from the rest.