Ehh, think it depends and i might go against the grain on this one. If on private property i wont see the issue. Its your property but you must accept the risk i suppose. Public property no way Jose. Your looking to get shot. Think my only concern is that it was on a hunting show. If it came with an explanation or something and a warning for viewers then I could understand as long as they let their audience understand this could compromise their safety.
The reason i can understand it is i have known a couple buddies in the mid west who say they use those cardboard cutouts when hunting to get close to antelope and mule deer. Some have even walked in next to their horses. I've also seen this on a few shows and it seems to be a tactic developed but you still risk the guy shooting from 400 yards away.