Same thing happened to me only it was unexpected mud. Now if I see something like that I keep that back wheel turning and have gotten through everything fine-7K miles now. Worse thing you can do is come off the power or hit the brakes. I grant there will be times you could do down no matter what you do, but keep that back wheel turning and you have a better chance of getting through it. These bikes are great handlers and given power they will get through a lot of stuff you wouldn't think they could.
The videos and rider courses suggested are great ideas also.
