Joseph, As long as the husband is paying the wife’s bills (as per the general understanding of the kesubah), and if no Beis Din has been involved, and presumably there is civil divorce – why would anyone expect the husband to give a “get”. He’s still married and obligated to support the family.
Unless your “advocates” are a Beis Din, if the people are not divorced why would they expect him to give a “get”. If the man has abandonned his wife and started civil divorce procedures, the “advocates” go to the Beis Din which order the “get”.