It saddens me that I can see myself in the first young jw (as of 20 years ago). I always remember being rudely told at a door when offering a creation magazine "don't be so stupid, get an education!". How rude I thought. But now I wish I'd done just that.
As for the video, I know I wouldn't like to be filmed, but they've got to expect that sort of thing since it's PUBLIC witnessing. Didn't they start vetting who could go on the carts? Maybe that just didn't work so they're just told to move on instead.
I feel sorry for the wasted years these kids have in front of them, but I think the video is more about proving a point than trying to wake anybody up. (the point being, most witnesses can't defend their faith very well at all). If it was a secretly filmed video you could have the best of both worlds, a real insight into the dumbassery of jw's, and the opportunity to plant some seeds of doubt.