Well done Joe ! I did a similar thing in what was then the Group Study a few months before I left. I explained about the WT being an N.G.O and gave a lame excuse for their action so as not to seem an Apostate.
I hoped someone would take the implications on board, but I don't think any of them did.
It was fun to do though.
Another subversive thing I did was when taken on a "Bible Study" I extolled the virtues of being what I called a "Scientific Christian", saying that it was vital the guy questioned everything, demanded proper evidence, and took nothing on trust, I said " this is the only way to make the truth your own".
The M.S taking the "study" looked at me a bit old fashioned but had to nod in agreement. I hope the guy "studying" took the advice and left.