The Get is only needed so that the divorce is recognised by the Jewish community. Without a Get any sexual relationship by the wife with another man will be regarded as adultery under Jewish law, even if she has a civil divorce. Further, if the wife conceives a child by another man then that child and all its descendants will be a 'mamzer' (i.e. religiously illegitimate) for all time, and will not normally be able to marry another Jew. The only special status that the Get has in English law is that one party (normally the wife) can apply to the court for the decree absolute to be stayed until the court is satisfied that the marriage is also dissolved in accordance with Jewish law.
I've been giving this further thought, and it seriously concerns me that a religious form of divorce has been given special status under English law. I can see the rationale - to ensure that the wife is not seriously disadvantaged within her own community - but isn't this approaching the problem from the wrong angle? Surely, instead of kowtowing to the sort of religious nonsense set out above, the law should prevent discrimination against anyone on the basis of whether or not they (or, worse still, their parents) have been through a process that has no basis in the law of the land?