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 Row of Women That Sit
They’re at every milonga in the world (with an exception or two – Russia & Asia). Every. Milonga. THAT row of women, of a certain age, and a certain disposition, that for a few valid reasons (pretty or not) who are sitting, and not by choice. Most have been sitting for more than an hour or two.