Probably too simplistic. If a structure is loaded to gross excess, it will fail and certainly can break. The reference to (wing) fuel is that the presence of fuel (ie mass or weight) in the wing, acts to reduce the bending loads on the wing in flight and, so, can increase the margin between current structural loads and the loads at which failure might be a concern. The OEM prescribes limitations in operating the aircraft to keep loads in check so that failure is not a likely event.
The starting description probably is indicative of the high standard of research in the reporting organisation ?