In effect, that brings divorce law in England and Wales (Scotland is different) closer to America's, where prenuptial agreements are routine but can be challenged on grounds of unfairness, deceit, impending destitution or duress.
Likewise, once these rules go into effect, any woman considering divorce will find it more difficult to separate credit card accounts and establish credit on her own.
However, the overall effect of this, as most anyone who has experienced a divorce can attest, is destruction of physical and financial wealth, and, especially when children are involved, personal hardships.