The answer to your posts title is DEFINITELY YES - you are being unfair!!!
So much so, that I don't even understand your logic here!?! Why do you think that this fella would even go if he wasn't allowed to hunt? Isn't that why he went...to hunt?
How about if he didn't actually kill anything. Would it be ok if he was to make his hand to the shape of a gun, and then yell
"BANG" at the deer???
You could be happy for your friend who did get a deer! He was probably pretty stoked, and your attitude is probably nothing but a buzz kill! Bet that was really fun for him.