They possibly could have done this through a press release, but I guess they wanted to showcase some of the new features. The iPad Air is a pretty good value. It lacks the ProMotion screen and FaceID, but is pretty solid.kind of meh....you know.
Expect another 1 hour broadcast in October for the iPhone, and a 1 hour broadcast in November for the first Apple Silicon Macs, unless they decide to combine the two events.