it's out of his hands

This video defies description, because we don't have a clear enough view of what has happened. The violinist looks like he knows what he is doing, but the violin looks like it has been pulled by the scroll away from him. I can only assume that the conductor with all of his waving got his sleeve caught in the scroll and pulled it with him.

The soloist is all smiles at the end so we assume that the instrument was not damaged.

I worked with a conductor who was telling me how he had conducted somewhere and the podium he was standing on gave way as he was leaning towards the cello section. He landed IN the cello section and let a cello break his fall. It was heavily damaged and he had to pay for thousands of dollars of repairs.