I can't offer you anything technical, I don't use an app. I log in through Chrome. But on continual play, my guess would be they never thought of it, because at least in my case, I am only watching a lesson when I have my guitar in hand and am able to practice.
If you can get past your frustration, it is a good site with a ton of information. The format may not be what everyone is looking for however.
Try to hang in there.