Climber falls from tree after taking the top out - HOW AND WHY did this happened? REACTION VIDEO

We breakdown this video of a tree climber taking a large top, and then being thrown off his spurs and spiralling down the trunk and landing before the butt of the top section hits the ground. How and why did this happen? What mistakes were made by the climber? What mistakes were made by the ground crew? What equipment could have prevented this? What techniques could have prevented this? Need staff? Looking for a new job? Visit #treefails #fail #arboristfail