Comment: A possibility ??

Maybe he had planned to go into detail about something, but was unable to share it at this time. He had set up the conference in advance and clearly had something important to share, but by the time of the event, the information could not be divulged due to some kind of internal circumstance. Maybe there really is something that he wants to say but can't just yet.

Of course, this is only speculation, but it could be a possible explanation as to why there was a big build up and then..... basically nothing.