I have had the privilege to see this video multiple times (both parts and in whole). I find the entire social experiment a very informative, thoughtful, and eye opening experiment. You can observe Ascription of Intelligence, Myth of Meritocracy, Pathologizing Cultural Values/Communication Styles, and Second-Class Citizen. 
It’s amazing how impressionable children are- but adults that have had these impressions pressed upon them become adults with these same values. But as adults we get to make our decisions and change our thought processes when learning new information and having an open mind to change.