What is the risk associated with splicing severed suspension lines?

Splicing severed suspension lines can indeed change the shape of the airfoil. The suspension lines play a critical role in maintaining the correct profile of the wing while in flight. When these lines are severed and then spliced, the mechanical properties and tension relationships in the wing can be altered. This alteration may lead to an uneven distribution of forces across the wing, potentially causing distortions that change its shape. Such changes can adversely affect the wing's performance, lift generation, and overall handling characteristics of the aircraft.

The other choices do not accurately reflect the realities of splicing suspension lines. For example, while there may be an argument for potential line strength after splicing, the critical concern lies primarily in the aerodynamic effects on the airfoil shape. Thus, the most pertinent risk when dealing with spliced suspension lines is indeed their capacity to alter the airfoil's integrity and functionality.