There are all sorts of possibilities.
Maybe it became policy for Foggy Bottom until it hit the fan and was just as quickly changed for the late night news update.
They don’t have to make a policy statement public but just deny visas on an individual basis; until of course the circumstantial evidence becomes overwhelming.
There have been so many things said by this current administration out of both sides of its mouth, on internal matters and foreign policy, that it is not easy to know what is correct.