There is a reason why it's so difficult to get someone out. The structure of the religion makes it difficult for anyone to listen to anyone but the Filthful and Disgraceful Slavebugger. One hounder-hounder is not going to be able to stand up against the Filthful and Disgraceful Slavebugger when he stops hounding and starts trying to help out. People are tuned to "keep their eyes on the prize" and "pay more than the usual attention". But to what? Whatever comes from their Kingdumb Miseries and Washtowels. Whatever comes from the Big, Great, and Grand Boasting Session. And, if there is one hounder that starts teaching something that conflicts with one of those sources, people are going to start viewing that rogue hounder with suspicion and disregard him. If you show people the proof that the organization is wrong, you are going to be dismissed at once as apostate (something the Filthful and Disgraceful Slavebugger did a thorough job at programming the witlesses to do).
The witlesses believe that the organization is God's, and that hounders (and hounder-hounders, and hounder-hounder-hounders, and even individual members of their ruler class) can fall away (Raymond Franz is perhaps the highest profile example of one that fell away when he realized that it wasn't the truth, and they had to disfellowship him on wimpy grounds). And, even Raymond Franz (a former Governing Body member) cannot get people to wake up and see the light--because the organization has done such a thorough job at teaching people to view outside sources as from Satan.
As for people being so moved by the releases, that is because they have nothing good at all in their lives. So, when you get a new DVD, they are going to be so excited by it. They have only had 225 Kingdumb Maladies to sing since 1984, and they are getting stale. So now, you add 42 (and take away 132), and they are going to get excited about it all. Just wait another 3 or 4 years--having only 135 songs they can listen to is going to get old mighty quickly. I find it quite pathetic that they get excited about such wimpy things as a few new releases and a few pieces of Kingdumb sxxx--I have more than 13.000 songs on my playlist and access to more than another 7 million, and find 42 to be a wimpy reason to be excited.