Didn't watch the video but get the impression its of tamed deer from feeding, as a child I fed a deer from the car in yellowstone.
I live between food and water in draught conditions in central texas, every now and then I throw some corn, I don't consider it baiting more like helping. They still wont just stand around for ya to shoot em, but it does make them predictable! Although I buy 50lbs a hamburger a year and thats it for a family of 6 and all teenagers. Everything else is fresh.
Today I had biscuits and gravy but I used wild hog sausage with a little bit of special spice, tomorrow may be some deer sausage but it's heavily mixed, unless I have sausage for supper