Real yes, scientific no. Unless they quantify every part of the testing in the video, making it repeatable by anyone then it is little more than marketing. How do we know they were production frames and not layed up with extra carbon and reinforced in ways the frames you and I can buy aren't? We don't. How do we know the forces put in are what they say they are? We don't. Its not SCIENTIFIC. Science isn't mythbusters. Science is fastidious, documented, wholly honest and repeatable by anyone that wants to. Were they taking the piss and trying to pull a fast one? No I don't think so, but you never know and thats the point with neck braces. There isn't any publicly available, SCIENTIFIC research to say "yes these will help you in this range of injuries but wont help you in this, this and this" Nothing conducted by a lab or university. Alpinestars have supposedly done a lot of research on the performance of their neck braces. If it were for the better of our saftey as riders you would think they would release the findings. Instead its an internally held document and used as a marketing tool with small portions of it shown here and there.
Im more into satan than jesus, but what you are laying down at the moment is not making you look very rational or well reasoned. Id say you're trolling but I think you think what you're dribbling is actually a good argument.
I am considering buying a neck brace, IMO they probably do help in more ways than they hinder, however the complete lack of any sort of independent testing means I'm buying into 1) Marketing 2) My own weighing up of Pros and Cons and 3) Hysterical internet arguments