Cedars, well done on actually trying to inform people outside of the organization about things like this. I think in the UK, like the US, it is easy for the WTS to hide behind the word 'religion' and therefore get the authorities to keep their distance. Unless the WTS said something like, "If a wife is physically abused by her husband then she should pray about it and hope that things will get better in time, but should never seek to end the marriage", then I think there is very little that can be done other than to publicise the way the WTS publications have dealt with this issue over the years.
In my view this is another example of the organization's Pharisee-like thinking, effectively making the marriage certificate (the symbol) more important than the people in the marriage itself (the reality), or put another way "the sanctity of marriage" is more important than "the sanctity of the marriage partners' bodies". We all know what can happen when the symbol of something supercedes the thing that it represents, particularly when it comes to the lives of human beings. It would be extremely sad if even one JW woman with a physically abusive husband (JW or not) saw it as showing respect for "the sanctity of marriage" to continuing living with her spouse on account of an example of 'patience' and 'endurance' found in the pages of one of the publications. There is never any excuse for husbands to be violent towards their wives. Certainly those husbands who claim to be Christians "ought to be loving their wives as their own bodies" (Ephesians 5:28).
You know, I hope the members of the Writing Department who wrote on this subject didn't simply ask themselves, "Now what particular scripture(s) somewhere in the Bible can we find to fit this situation?" I think it would have been good if they had asked themselves something like, "Now, given that we are trying to promote the Christian way of doing things rather than the way of doing things under the old Mosaic law, and being aware of how the scriptures describe the kindly character of Jesus and his genuine concern was for helping the disadvantaged, if he were present with us right now, what do we honestly believe God's Son would advise as being the most important issue here?"