A similar thing happened at every Space Shuttle launch I was lucky enough to go to. I wouldn't read too much into it. A few people get really excited and proud

A similar thing happened at every Space Shuttle launch I was lucky enough to go to. I wouldn't read too much into it. A few people get really excited and proud to be American when they see a display of some impressive literally-earth-shaking technology (the noise from a shuttle launch was amazing!). They start chanting it and the rest of the crowd joins in. It's a nice moment of unity even if it is within the confines of national identity.