There was never a stream. Remember that it is "illegal" for WH staff to get involved with attacks on the media.
That is what the meeting was for with the GOP leadership. There wasn't a camera or a stream. It was an epic fucking troll.
Multiple analytics are drawn from everything. Hard to establish a primary motivation from the outside.
I suspect the primary motivation was to shake up the media and the public as a whole. How many people are engaged on Twitter, now, that weren't before?