Certainly the American idea of separation between church and state is lost in Sharia-style governance.
As long as they abide by their own internal rules of governance, the secular society imposes no meddling restrictions.
This is not governance in any meaningful sense at all; it is lowest form of base politics.
late 14c., "act or manner of governing," from Old French gouvernance "government, rule, administration; (rule of) conduct," from governer (see govern). Fowler writes that the word "has now the dignity of incipient archaism," but it might continue useful in its original sense as government comes primarily to mean "the governing power in a state."