The whole quote puts it into context. What is the point of testing everyone in the general public on a daily basis, especially if you are practicing social distancing, etc. at this point? First responders, the meat packers, those who cannot or will not follow the guidelines, etc. I get.
That's not the theory. If you can test everyone who we think could be of any issue, then isolate and do contact tracing to inform new tests, then the virus can be squashed.
That is fine for the people who test positive. You then need to keep retesting them on a daily basis to make sure they have not caught it after the last test, no?
Did you mean to say that is fine for the people who test negative ?
Also, asymptomatic people are more likely to test false negative and pre-symptomatic people may not have a sufficient titer to show a positive test result for several days.
Negative results would probably require retesting for several days.
The Abbott tests are said to be about 85% accurate, while some other testing means may be 98% accurate. Throwing a few hundred million tests at the labs over a period of days might be a few too many.
I prefer the current way. Throw taxpaying people going to work in jail for violation of stay at home mandates to be able to feed their kids and fine them when they don't have the money to pay rent, mortgage, or food bills. Meanwhile, release criminals so the new criminals can practice social distancing during confinement.