4WD rolled backward || 4WD Fails

We had this video sent into us this morning and a ** warning as some viewers might find this disturbing ** Shows how quickly once again it can go wrong for us all off road. Very easy to pass judgement from a computer but in our opinion if working the winch on the front of the vehicle should of been hooked up to a suitable anchor point and the wheels chocked to help prevent the 4WD rolling backwards. Driver remains in 4WD with foot firmly on footbrake in 1st gear.
Seems too much momentum was used when ascending the hill resulting in the typical bouncing of the front end and being thrown off line. We hope everyone involved was ok as this was a bad roll over. Please keep safe out there everyone it can go so wrong so quick.