I totally get the narrative that is behind the photos in the link you showed. I also agree that most people have no understanding (let alone reverence) regarding the source of their food. On one level, they know that the piece of beef or pork loin that is neatly wrapped up on a tray in plastic wrap once belonged to an animal, but photos like these really bring that home.
That being said, I personally don't feel the need to view photos like this, regardless of how well done they are. I'm not squeamish (was a foot surgeon for 8 years), but I just find them unpleasant, esp. the images of the living animals in the slaughterhouse. Some were just plain disgusting. I've watched "Fast Food Nation", "Food, Inc.", read books like Omnivore's Dilemma, and those are a few reasons I seldom eat meat. These photos are a compelling reason to become a vegetarian, and to me, that is the value in them.
Unpleasant and upsetting are constantly hammering us in daily life; the continuing oil spill in the gulf is a good example. I like looking at art and photography to
get away from that, as I imagine many people do. If I think about that example in particular, it fills me with rage, profound sorrow, and a whole range of emotions that I don't enjoy experiencing.
So, assuming that challenge goes to fruition, I won't be looking, voting or otherwise participating in it either. Not because I have any moral objection to it, but I simply don't want to spend my time viewing things like that.
Bring on the butts and boobs - takes a lot more work for those to be offensive to me

.