AAWA arent ever going to get to sit down and have meaningful discussions about doctrine and proceedures with anyone in any position to have any say about them, let alone sit down with the GB and discuss them. They sound pompous for even suggesting it.
I understand changing those damaging points of interest would help average JWs lead a more "normal" less cult like life, but it would still be a damaging cult of a slightly lower order.
I think change will only come about via government level intervention and pressure. Nothing exerts that sort of pressure like financial implications. Take away charity and tax free status from all the cults (my preference is ALL religions) Make discriminatory practices illegal (shunning). So in my book AWAAs (or similar) remit should be to make those agencies and governments and the press very much aware of the secret world of the Watchtower. We all know how the WTS loves persecution and can feed off it, so the results may not be as intended anyway and may in fact strengthen their grip on the JWs.
No little group of apostates shouting at the WTS from the sidelines will every get WTS to change internally, only a government level body can force that change. The effort needs to be directed towards those who can make the changes happen.
Unfortunately most of this stuff is covered by religous freedom laws anyway in many western lands so governments wont want to be seen to touch it with a 10 foot pole, but getting a group labelled under "damaging cult" instead of religion will at least give them more room to show interest in it.