I have read 3 stories this season about folks getting hurt or almost getting hurt coming off the mountain in the dark just to make it back to camp. A guide died doing so after falling to his death. They killed a goat and decided to come down for the night and go back in the morning. IMHO it is much safer to pack what is needed to stay the night and descend well rested and in the daylight.
I have in the past done this too, but the last few years have chosen to stay and come down the next day. Be safe folks, I still believe goat hunting is the most dangerous hunting there is. Two have died this year that I'm aware of, gravity kills and it only takes a instant for things to go bad.
Be safe my friends.