I think what happened is they used a fancy camera with a big lens and a 30 FPS frame rate, giving a very high quality image reminiscent of Hollywood films, but

I think what happened is they used a fancy camera with a big lens and a 30 FPS frame rate, giving a very high quality image reminiscent of Hollywood films, but they set a faster shutter speed than Hollywood generally uses, giving less motion blur than is normal in high quality footage like this. The relative lack of motion blur despite the low frame rate gives it a jerky appearance similar to sped up or timelapse video, or animation. Combined with the slightly odd motion of the robots, it has an uncanny look. It's kinda funny because most robot demo videos are sped up and/or CGI, but this one isn't.