The online SmartCon stream is not simulcast. It will be played after SmartCon has finished.
There are only two reasons to want to put this sort of space between the event and "the community".
One, is that it's such a nothingburger that they don't want the community to be furiously derailing while it's on.
The other, is that it contains such monumental announcements they want the major players in attendance to be able to take positions before the community finds out what they have just learned.
Which will it be, bros? We are teetering on a knife's edge between eternal glory and the ignominy of more waiting.