Coma Patients In Vegetative State May Have Damaged Fiber Connections In Brain, Making Them Aware But Unable To Respond

Structural damage between the thalamus and primary motor cortex is the obstacle preventing intentional movement in coma patients who are unable to respond.

Source: Coma Patients In Vegetative State May Have Damaged Fiber Connections In Brain, Making Them Aware But Unable To Respond

This definitely is a good news, but what to tell those who are feeling guilty for taking out from life support some of loved ones, because of lacking of reaction?