Osterholm: Testing as the White House did was like giving Squirt Guns to the Secret Service to protect the president from Assassins

Note: The assassin in this case was literally the coronavirus. 

So, What Osterholm says is that he warned the White House in June or July that the test they were using was capable of up to 1/2 readings of false negatives, especially in the region of asymptomatic carriers. So, he predicted then that this was bound to happen just out of pure probability with a 50% misreading of quick tests.

What I also gather is that it is not only Abbott quick tests that tend to have this problem but mostly all quick tests made by anyone.

However, if the Super spreader event at the Rose Garden for the Supreme Court Nomination had been accompanied by everyone wearing masks and not shaking hands or hugging each other you likely wouldn't have had this Super Spreader event.

People trusted the Abbott Quick tests in a way that wasn't medically scientifically reasonable and then wore no masks at all and then shook hands and hugged because they didn't understand this could and eventually would happen at an event like this one.