Well, we had been PM'ing about the GUE video because I felt it was a bit off topic, but okay ...
As I said, maybe GUE doesn't want people to post videos all over Youtube that purport to show "GUE divers" or what a GUE class/student is like. I can totally understand not wanting their name attached to an informal poor-quality video that was taken only as a training aid for a particular student. Sure, they could have the student sign an agreement not to use GUE's name on the video, but they could never enforce that, and so it's simply a lot easier to delete the video immediately so that nobody has a copy.