The latter. I believe there's no real consensus at this point, save for a few points, of which the minutiae require more investigation. A lot on this virus is being learned "on the go" as the situation develops.
Also, some choices made at the time were made in haste, now, like the Science blog warned about "pandemic research exceptionalism", we need to make sure that public policy is subject to the same rigorous line of thinking (an extreme example of not doing so is the bleaching of a beach in Spain), IOW no decisions simply "because it's a crisis".
Public policy and elected officials need to be aware of these unknowns when taking decisions, especially since many of these, in one way or the other, carry negative externalities.