nicolaou,
I think it's a great idea, in theory.
Remember, the 'Convention Report' is simple a front and back page wrap-around the regular edition of the newspaper. Even then, it's rarely the national newspapers which go in for these sorts of stunts, but the local 'rag' that's deperate for any way to sell a few more newspapers.
The 'Convention Report' is there for one purpose, and one purpose only. Not to provide a fair and balanced critique of the convention programme, or Witness beliefs, or any of that nonsense. In these situations, newspaper editors don't give a fig for fairness and balance---it's only about selling a thousand extra papers each day.
steve2 is absolutely correct. It's PR 'fluff.' Any words or pictures that might alienate this potential readership are Definitely Out.
Perhaps the most that one could hope for would be to write a letter to the editor and hope it might get published in the main paper. On the other hand, local newspaper editors are also part of the local community, and in spite of their skinflint ways, even JW conventions bring a lot of money into those communities which they would not want to jeopardise...