I know it does seem unfair, but this is nothing new. It has always been the case to not allow coolers on the beach when there is a beach bar there. Even Karakter does not allow coolers and I think they have a sign stating this. When we wanted to bring coolers, we always brought our own chairs and moved to a more secluded area to enjoy our day. The Club O beach always allowed coolers with no problem, but I think they were an exception.