I'm not really surprised a lot of people think it's CGI. A big bunch of the population doesn't believe in viruses, evolution, and a lot of other science, so this might as well be magic to them. While the robotics I work on aren't anything to this degree, I've worked around a number of manufacturing robots, and the level of fluid precision of some of those robots is insane. I've never seen anything in a BD video I've questioned based on what I know works. It's not like they just created these out of the blue. I've watched BD go from simple wired up pogo stick like devices to this over many years.