This to me is where I have I am concerned with the feds abdicating the planning and decision making to the individual states. While hindsight is 20/20 and back when WA and CA shut down it didn't make sense for the entire country to lock it down. But as we can see now that was incredibly short sighted and allowed for careless actors like DeSantis, De Blasio and Kemp to fail to take the necessary actions.The main problem I see with a reopening is that infections anywhere could result again in infections everywhere so long as travel is not restricted. For example, if Allegheny County manages to reduce cases to zero but people can still travel from other counties where infection is still present, then infections would just spread back to Allegheny County. China dealt with this problem by shutting down domestic travel, but that's probably not something we can do here. Heck, right now there are still airline flights into and out of the greater New York City area, and that's the US epicenter of the outbreak. There's certainly nothing preventing people from driving out of NYC. I can't see the American populace accepting city, county, or state-wide roadblocks and travel bans that would be necessary to do what China did, and that sort of thing would likely be unconstitutional anyway.
I agree, which is why I envision a gradual progression.
We almost assuredly seem to be on a path where certain localities are going to decide they are safe to open things up which will allow individuals to make reckless decisions, and as long as people are able to do as they please here, we are vulnerable, as you stated, from people simply moving around the country.