On the CBS evening news a few moments ago, there was a different video with some hired media talking head doctor who was smiling all the way through the report. All warm and fuzzy for the sheeple, don’cha know.
From the hospital's point of view, this is more of a PR problem than a medical one: Do you really want to announce that a patient in NYC has tested positive?
You'd have a real panic on your hands.
Better to just announce that everything is ok (and my gosh that was awfully quick) and then try to put in place a plan for when you will have to announce a positive case.
Because it will happen. And soon.