In their defense at least they were far away from the bear, and simply left a chicken carcass in the middle of the area and filmed from afar as a bear appears and eats it. The bear probably wont associate the chicken carcass with people or with houses, cities, civilization etc.
It is not all that different from simply watching a scavenging bear eat a random animal carcass that naturally occurred.
That said obviously it is not a good idea to feed bears in general, and i think it is good the video was taken down so people don't imitate it in an unsafe way.
You've made a lot of assumptions here that bear biologists probably don't even have an answer to.
We've got no way of knowing if that bear associated the chicken with humans. It was handled by humans, so it probably smells like one. Humans were nearby and the bear could probably smell them. Humans put it there and the bear probably saw that. Rotten carcasses of wild animals probably smell significantly different from non-rotten agriculturally produced chickens.
Remember kids, if you make and assumption about an animal, you're probably anthropomorphizing and are therefore likely to be wrong.
Any method of feeding bears is dangerous. If they need food, you need distance (Port Renfrew bear mauling anyone?). If they don't need food, don't feed 'em.