In what way is this case different?
There are plenty of cases where states have been trying to follow the approach you suggest and have had their orders seized by the federal government. It seems like it's still quite unclear which approach states are supposed to follow so it seems perfectly reasonable for governors to be pointing fingers where the blame lies.
Colorado: https://www.denverpost.com/2020/04/04/coronavirus-colorado-p...
Los Angeles: https://www.latimes.com/politics/story/2020-04-07/hospitals-...
New Jersey: https://www.newjerseyhills.com/echoes-sentinel/news/somerset...
Broader piece: https://www.nytimes.com/2020/04/06/us/politics/coronavirus-f...