I wasn't saying there shouldn't be a plan - I am saying that expecting that plan to be managed and executed on a municipal level is lunacy.
Your own response proves the point, when your reply relies on a comparison with an evacuation conducted by an authoritarian government - which, BTW, evacuated fewer persons than actually did evac in NOLA.
And surely you don't believe that the local governments of Talim and Haitang performed that effort, with their own resources.
Why should you give an example? Because it is you who is opining that the NOLA municipal government should have executed a feat that has never been done before, that's why.