Flight testing incident footage demonstrates strength of new composite helicopter

I noticed that too, those two statements seem to be in direct contradiction to each other. I think maybe someone was misquoted or misunderstood.

You just could not produce or buy any better advertising than this video tho...

There are several kinds of mechanical failure modes. The component that failed would've been engineered for at least mechanical overload and fatigue failure. You might interpret the statement of "well below the limits..." to mean that the component did not fail due to mechanical overload (i.e. a single event), but failed due to fatigue ("high cyclic fatigue"). I think their point is that they were operating the machine under normal environmental conditions when the component failed, not, say, in a thunderstorm updraft.

The "third-party" part manufacturer must be a big player in the helicopter markets for them to use such vague and even contradictory language.

This quote attributed to Harry Reasoner about sums it up;

The thing is, helicopters are different from planes. An airplane by it's nature wants to fly, and if not interfered with too strongly by unusual events or by a deliberately incompetent pilot, it will fly. A helicopter does not want to fly. It is maintained in the air by a variety of forces and controls working in opposition to each other, and if there is any disturbance in this delicate balance the helicopter stops flying; immediately and disastrously. There is no such thing as a gliding helicopter.

This is why being a helicopter pilot is so different from being an airplane pilot, and why in generality, airplane pilots are open, clear-eyed, buoyant extroverts and helicopter pilots are brooding introspective anticipators of trouble. They know if something bad has not happened it is about to.

Harry Reasoner