Yes, he is. They say these days, "No good deed goes unpunished." No Good Samaritan goes unpunished either. I wonder if he knew what he was in for.
But then, he did not come away empty-handed. He plainly liked Terri and worked with her in a friendly setting. It's always seemed to me that she was more responsive to people she liked. Dr. Hammesfahr's experience with her must have been rewarding. He and David Gibbs and Pat Anderson, who had all been close to Terri, were alike in affirming how vibrant and alive she really was.
Even ol' Humane Death may have liked her. He complimented her on her response to one of his tests. Then (after all of 40 minutes with her), he wrote his death sentence for her saying that she was incapable of responding to anything. So who was he communing with when he complimented her, a rock?
Remember when he put the q-tip thing in Terri's mouth? Dr. Hammesfahr said she wouldn't smile at him any more that day!