Different tutorials are suitable for quilters in different stages of development. I go to Youtube to quickly learn a new technique. It would drive me crazy to have to watch everyone include detailled instructions about pressing, cutting, etc. Plus, some quilters do develop the ability to sew very fast and maintain accuracy. I had to work much more slowly and carefully when I was beginning. Nowadays I know exactly when I need to slow down and be careful about accuracy, and when I can speed up without worrying about having problems down the line. The short Youtube videos such as the one posted are aimed more at intermediate and advanced quilters who don't need to see basic techniques demonstrated.