I seem to recall questions being asked. We did have some lecturers whose English wasn't good enough to rephrase what they had said - they just repeated what they had already said like a rewound recording. It was not helpful and I can't see rewinding a video to be helpful either. Also if I don't understand something at the beginning and therefore can't follow the next step I need to get an answer now not tomorrow.

Finally why go to a class to do busywork slowly with a bunch of people who probably haven't done the prep work and will ask the same questions over and over again or expect you to do their work for you?