Firstly I want to say congratulations to you and your wife for escaping and welcome to the site here!
When newly out of mind control most of us have the desire to help our former trapped inmates. It is good that you propose an idea but I fear it would miss the mark since it is addressed to the public, most of whom don't care a fig about JWs.
The problem of rescuing our old comrades is one which crops up all the time on exJW sites because it is such an important issue to discuss. How to rescue the trapped and avoid the heartache of remaining embroiled in the cult?
One way which is found to work is to play the long game with individuals; never criticise the org...to do so is like puncturing their inflatable lifeboat... and live a happy and useful life after departure from the organisation. It doesn't have the drama of your suggestion admittedly but JWs expect apostates to turn into libertine hedonists as a matter of course.
Perhaps a national awareness campaign day, highlighting the JW mind control and end of world scam along with their paedophilia issues, could be organised through various arms of the media? I fear this too might only attract more nutty followers in the aftermath!