This instructions/advice are just common sense. Why would you risk playing casino when there is a pandemic and I think almost all casinos and other establishments that gather huge amount of people are closed right now. We could all be safe in our houses, why not try online casinos or if it is not your thing then go save that money or funds for future use or urgent use. Stay safe guys.
I'm 100% sure none of casinos where the location is infected by Corona Virus is still operating, authorities know that contact among gamblers cannot be restricted, gambling casinos are the first to close when the virus hit the location they are on the category of concerts, festivals and meetings.