I completely disagree.
You can have this virus and show negative on the test.
You can also have the virus.. test positive..then test negative in two countries..and then suddenly test positive again as seen by the Israeli.
What is unclear is if you are shedding while you are testing negative.
That said, US cannot effectively quarantine people for this virus. We aren’t Commie China. They are not going to weld you in.
You may well be correct—but the whole purpose of the CDC delay of the tests was to develop a superior test (for just the reasons you cited).
I believe the Italy and S. Korea tests were something like 98% accurate, and CDC wanted to improve on that number.
I have no idea whether the new test did improve on it or not.