How much this is enforceable remains to be seen. What's worse, there was already histeria caused by a leak of the document before it was completed (and people blaing the "lack of responsibility" for the leak, when such things have been going for more than a decade...), with people rushing to stations trying to get away.
There is no clear communication (the same government ministers saying different things over the course of a day), there's the "emergency department" (Protezione Civile) that is not able to keep up, there's blaming the victim ("Act responsibly", "You must change your way of life", said from people who have never understood how normal people live and work).
This has been a mess from a policy and communication perspective. Not surprising from a government that was elected "to give politicians a lesson", "to crack open the Parliament like canned tuna", and in the supreme name of "honesty" was built out of complete incompetents.
I'm truly hoping that we'll get out of this... despite them.