If anyone wants to find out more about this topic, there is a book about team of rugby players from Argentina whose plain has crashed somewhere in mountains in Chille. It is very high part of the mountains, under snow and ice, so flesh of people that have died in accident could be used during those weeks they were trapped there. They have survived only by eating flesh of few other passangers and their friends, they had no other choice. There is a book about it, not sure about the name, but with the little help from google, you could find it easily I guess. Read it, quite interesting.
As I am no fish or a bug, I cannot see how the way another species live their life can mean anything to me.
I tend to belive to impulses of my body, and as body of most of human beings, it reacts with disgust on other dead humans and their flesh exposed, so there is probably a very good reason for that, as there is a good reason for not eating shit even if there is still a lot of proteins there. Technically, human flash should taste very bad, as flesh of other animals that are eating flesh too.
It seems that people presume that every kind of "laws" we have in society is intentionally made by human, which is untrue. There are some laws based on deep insticts and collective mind. Fact that most of societies on earth avoid eating flesh of their fellow humans shows that this is good for a human race. Also, I have some other specific views at this topic as I am vegetarian, so I do not eat any kind of meat at all because I feel it is quite disgusting to eat something that has feelings like I have and is breathing the same air as I do. But this is all another story.
Disclaimer / Not preaching or anything, my preference is based on feelings of disgust towards eating flesh, not any kind of moral code, I do not think that everyone should avoid meat.