Typical political BS.
I agree that their response is way over the top, but I could see the same thing happening from our own political administration. Give the guy orders that you need confirmation that the right target was eliminated, then reprimand him for carrying out said orders. Hopefully, somebody higher up the food chain will not only protect this young soldier but see to it that he's awarded a medal for carrying out his duties in a exemplary manner.
It seems rather contrary to me to be concerned with beheading an enemy that video tapes the beheading of others themselves. Maybe if Taliban beheading became a regular occurrence, it might become more difficult to recruit new members?
Reason # 7 why I'm glad I'm retired from military service:
Damned if you do, damned if you don't.