Here's my take:
They had to do something, otherwise hospitals etc would been overcrowded, not only resulting in the death of old people, but others, in there for all kinds of reasons.
They had to win time, so they could get up to speed on things, make sure there were masks, respirators etc.
The next thing to do is making sure the old people and people in society that are more important than others don't get sick.
After this has been taken care of, everyone else needs to get out there - and get infected!
A strategy would be to have Foo Fighters play every weekend for three months. This will have people in the right age and race demographic get infected.
You can't have Beyonce play - then poor black people working in hospitals would be infected.
You can't have Bruce Springsteen play - then old people would get infected.