Crank bolt to hold damper

A thought:
As I see it, the damper bolt is not the path of vibration to the damper; I see the path as:
1. interference fit between crank snout and ID of the hub
2. the hub being drawn up tight to the lower timing chain sprocket

A Helicoil, properly installed will not have a negative impact. The strength of all threads, of all nuts and bolts, has to do with the shear strength of the material they are cut into, the material of the Helicoil has a greater shear strength than the cast iron it's going into. So what's the problem?