He got what he deserved. I got what I might have deserved (though my own companies senior NCO's thought it was too harsh) when I had my ND last year. I do have a bit of an excuse though. I had a tumor (didn't know it was a cancer tumor then though) growing in the side of my face pushing on my jaw joint. That caused me so much constant pain that I couldn't sleep for more than maybe 20 minutes at a time every couple hours. I had maybe 40 hours of sleep in a 30+ day period, many daysas little as 1, the most was a day off I had and I did nothing but try to sleep. I got I think 6 hours when I added it all up. I was at the point of dozing off while standing up and catching myself as I was falling, and once fell asleep while in the middle of a conversation. I told my PSG that I was afraid it was affecting my job, since I didn't trust myself when searching cars (deployed to be a gate guard basically), and would double check myself just to sure I didn't miss anything. The next day I stuck a mag in my M9, forgot about it and we did function checks on our weapons. I didn't clear it first, didn't look into the chamber when racking the slide to check the single action and reset. End result was a 9mm hole in the top of the tent, and a round coming down somewhere in the desert.
A week later I finally got to see a dentist (the doc I saw first thought it was a TMJ condition).
The LTC who gave me my Article 15 thought it was bullshit and an excuse. He never used the excuse, "that I was tired," when he made a mistake. Well sorry, there is a difference between just being tired and completely exhausted. Fucking Ranger School students get more sleep.