Speaking generally,
If your father/mother/son/daughter was on their death bed dying, in pain, suffering their last minutes of life and you in your heart (with a dose of common sense) knew they weren't going to make it and they asked you to end their pain and suffering, would you?
Or if they couldn't speak but you knew they had minutes to live in pain and you had a chance to unplug them and let them go quickly you would still insist on keeping them going to suffer those last minutes while help might come so they could most likely die en route to the hospital?
Semrau is guilty of compassion and not letting the chain of command know what he did. Is that worthy of kicking him out of the forces? I'll say no, others of course say yes.
Like our Generals who are having affairs while deployed and sent home, shuffled around and keep their ridiculous pay and rank? Semrau's actions while more severe were based off compassion and honour, what are our generals basing theirs off of? :