That’s not a good measure for the performance of the regulation. In fact I’d like to see the numbers on the exact reasons for those shut downs, because I’m willing to bet they’re related to bad classification and other technicalities.
If the FDA were to be a test, you’d want it to have good discrimination at a low cost.
Anyone who has been involved in the process knows the cost is enormous, and scandals like Theranos (and good but extremely late good cases) show that discrimination is not that good to begin with.