The fencing they installed only strongly suggests to people not to enter the water. If someone wants to, they will simply climb through the rope...IMO, that's on them and their own dumb fault... But more importantly, it won't do ANYTHING to prevent an alligator from coming on to the beach. So, they may be looking at things they can do to prevent alligators from coming on to the beaches before they reopen the beaches.
Just speculating.