Maybe their plan is to go one or two states at a time to make the process more manageable.
What I see is the progressive cartel testing the waters. Seeing how well they can get away with this at the local level. They probably want to do a few states or areas at a time to maintain a false sense of security in the rest of the nation. People in unaffected states will largely be trapped in the normalcy bias while many of those aware will be swayed by the bystander effect (believing others are handling it).