While this is true, and allows the ideal to be exercised one place but not another, the ideal for all spheres would be to have male headship. However, all spheres can have female headship under exceptional circumstances as well. The church should have stricter standards for those exceptional circumstances, however, since it is supposed to show the light to the rest of the community.
The church is a different matter of course but within a civil/secular society God can and does allow for "extraordinary" circumstances and we are in those indeed at this time.
I won't get into the MB/SP debate but I agree that neither should be trapped into a "God-ordained order vs. Civil servant order" trap put out by the gotcha media. Under these exceptional circumstances either could step in and run a "non-God-ordained (secular)" democracy and still heed their private Christian belief that the husband is head of the wife which is God-ordained.