Having interacted with that tutorial's presenter a bunch during preparations for this conference (i.e., I know him but I don't know him), I don't see him opting out of the recording. I'm guessing it's just that it takes time to get these videos converted, edited, and uploaded.

The fact that any videos are up at this point is astonishing. Carl Karsten and crew are constantly working throughout the day to get this stuff all sorted out and available to the world.