Bay water over that causeway is not that unusual...it happens often.
They were like OMG look at the waves over the tops of 5 story hotels in Cuba. First off, it was a wave slamming into their seawall and the seawall won. If it was a disaster the wave would have cleared the seawall without breaking. If that’s the measure, I’ve see 3 story waves hit St. Joe Island Jetty on a stiff east wind. That picture or the levee breach during Katrina’s the real deal. Utter devastation.