The government is an embodiment of Dunning–Kruger.
Actually I think this particular case of traffic cone exhuberance, to call it something, is perfectly aligned with the political culture. The Nanny State is an ideological system. Citizens are irresponsible permanent minors who can't handle their own most basic life affairs. So they need [insert any "safety measure" forcibly supplied by the State] every inch of their way from their own home to the supermarket.