Video-Tutorials vs. In-Person-Classes. Does it matter ?
No. It doesn’t.
You can learn just as much from a video as you can from being there. The difference ? The kinesthetic information is missing. Truthfully ? You’re going to miss that anyway because the class is blind-leading-following-the-blind.

The ‘Classy’ Move
Truth be told, the beginner dancer that does this will make themselves, and their dancing partner look absolutely fabulous regardless of how the dance went. What is it ? It’s The ‘Classy’ Move.