I just watched the DVD too. I think they are making these propaganda pieces to combat the Internet. Any rational person met in service who shows any interest would obviously look up the Watchtower online. Until he gets seriously involved, he won't really know how to research or what subjects to search for, to get to the bottom of what the JWs really teach or their true history. I know I tried before I joined and I found 6 Screens and some nutty fundie sites, which just solidified in my mind that "apostates" are mentally diseased and demon-possessed.
The DVDs mention a lot of the things that should be damning, but downplay and spin them into the same positive BS they do in the magazines. It's also a preemptive strike on "apostate" information. A JW simpleton who is confronted with failed prophecies, insane teachings, the hostile take-over by Rutherford, Beth Sarim, etc..., can honestly (in their mind) reply "Yeah, I already know all about that."
In JWland, they really believe an honest, unbiased study of JW history and doctrine can be had with only JW literature. It's astounding, the hypocrisy, when JWs tell outsiders all about their religion from JW literature, exposing the lies. But when they research their own religion, use only insider material. I'm not sure if JWs are insane, lazy, or just plain stupid; maybe some combination.