The problem the org faces, is that it takes sooooo long to make any noticeable changes. They need to revamp doctrine and practices quickly in order to stay relevant.
But by doing that you are going to alienate huge swathes of the membership. But will they take a short term loss to stay relevant for the future?
And what can they REALLY change?
They can’t touch blood - Law Suits
They can’t touch disfellowshipping - mass exodus / law suits
They can’t touch 1914 without having a major overhaul of all doctrine - That will disillusion millions.
Basically the 3 main areas that they need to overhaul in order to grow properly and become mainstream, are untouchable IMHO.