I'm generally all for transhumanism of the technological variety.
Those videos, however, didn't seem to be a good example of what transhumanism is (typically) all about. Transhumanism is, to my understanding, about moving beyond the confines of biology and increasing the welfare of humanity as a whole.
For example, whether or not transhumanism gains hold as a viable construct, we're still going to have a human population issue. Yes, the possibility of literal mind control exists. And Artificial Intelligence will happen without the transhumanism movement.
Also, read the YouTube video description. Utter hilarity there.