Without any implication with respect to the current accident, the pilot in the Wessex Welsh lake video seems to have done an outstanding job given the circumstances. Looks as though they managed to check some of the yaw and get some directional control before accepting more yaw and a reduced ROD and forward speed.
All the videos all show that once the yaw has accelerated following a serious anti-torque problem, stopping it is going to be extremely difficult, even with a lot of height.