It is good that you reacted properly and kept the rubber on the road.
I did expect the video to be more intense and it got me to thinking how valuable dirt experience is on the road. When in the dirt, you learn to react to a bike that is rarely planted and hunts all around under you (slides, twitches, deflects, etc...). If someone has only street experience, when the bike slips, it can be terrifying. I have heard riders complain about the grooves on the highway moving their bike around and scaring them and thought, "Hmm, I hadn't really thought about it when it happens."
I grew up on the dirt from about 10 years old and didn't hit the street until my late 20's. I picked up a massively heavy VStar 1300 VTwin and had it in a slide for about 6 feet sideways to avoid getting plowed by a 1 ton truck. I reacted as I wound on the dirt, kept the bike upright and although intense, it really didn't scare me too much. I am not saying I am an talented rider by any means, but my muscle memory and instinct saved my bacon when there was no time to think.
Dirt experience can save your life.
Agreed. I've had some dirt training and experience but definitely still a big noob. I agree that I need more dirt time to be more comfortable sliding around (it's something I want to learn, for sure). I would say that if it weren't for my little experience riding dirt I would've been more fazed. I just shook it off and went to work as normal.