I counted at best 235 people online. 235! when there are almost 5000 master nodes.
The only thing that explains this is that these nodes are in very few hands. Any holder, holder of one or more nodes would do the impossible to listen to the live talk.
Relax dude, people live in different timezones. The world is not the US (only). The conference is here to watch:
https://youtu.be/ie7fJMw5WIo