I believe the point is that in a community property state, a judge can asign debts to the other partner in a split. A creditor still has no actual legal recourse to sue or go after the one person for the other's debts. If I got divorced, (seeing how we have 2 cars and both loans are in my name) the judge would more than likely give one to my wife and one to me. He would also assign the debt from the one to her as well. Now, if she did not make the payments, I could go after her through the courts for the debts. But, as far as Toyota is concerned, the debt is still mine. The courts can not change the legal wording of the contract that I signed with Toyota even though he can, as part of the divorce settlement, assign that debt to my wife for payment.
In other words, Toyota can not do anything but ruin my credit and try to take the car back if she doesn't pay. I could then go after her through the legal system for failing to live up to her end of the divorce settlement. I would still be on th hook for the bad debt on my credit score unless the creditor agreed to remove if after shown court docs and stuff. That would be totally their choice.