I think not enough was known. It was a pause for a reset. Life has to go on.
It was done for the following reason:
1. Vain hope for containment.
2. Stretch out the the disease curve for ICU availability.
3. Hope for a new or repurposed drug(s) for a reasonable treatment.
Results:
1. We've blown totally out of containment. There's no stopping it now. (My guess is the infection curve will peak in 1-2 months, with the death curve about 1 month later.)
2. No longer a possibility.
3. All the repurposed drug possibilites have been squashed. The only "new" drug is Remdesivir, which is only marginally effective. (According to the "gold plated" standard. According to that trial, it did not statistically improve mortality rates, and only reduces hospitalization time from an average of 14 days to 11 days, and this with a 8% rate of dropping the drug due to side effects. )
I'm tired of explaining here. I think I'll just have a Rum and Coke and let the world go to pieces. . .