I don't see why she's getting so much bad press, it's not like she's the only star to do it. Madonna and Kate Winslet are the first that spring to mind but there must be a lot more who have split with the father of their children and live in different countries.
But in their cases, we have to assume things were arranged amicably. There were no court cases (as far as I know). Plus I believe both their ex husbands were wealthy in their own right and able to travel abroad easily and often.