Why would they be useful for taking images/videos of a safari? I am sure the resolution is far worse than the low end DSLR.
It takes HD video, which would (I would think) be useful in conjunction with a DSLR. Plus, If I were lead of that project I would try to get some video with it to show off the capabilities.
I had two cameras with me, but do to the limited number of hands I have I could only use one at a time. Google Glass, in theory, would allow me to use both at the same time.