According to the White House, it's all about Obama:
After weeks of internal debate, White House officials adopted the communications documents to shape public events and official statements, and they sought to strike a delicate balance between messages designed for these two very important but very different audiences on a day when the world’s attention will be focused on President Obama, his leadership team and his nation.
I think the fact that they say it is his nation speaks volumes. You do not own this country Mr. President, it is a country made by the people, for the people.
I was sitting in my 7th grade homeroom when we heard the news of the planes hitting the twin towers. I imagine everyone old enough remembers exactly where they were and the emotions they felt, and none were about a community organizer in Chicago. 9/11 is about the thousands of lives lost on that tragic day. Despite the tragedy America still stood strong and did not cower to terrorism and threats to the American Dream of a constitutional republic. Shame on you and your staff for trying to declare it as a day about you, your leadership team, and 'your nation'. It has absolutely nothing to do with you.