I'm with you, but this is Louisiana. Sea wall is pretty standard fare for a company that wants to last more than a few years and not piss their whole income away to hurricane insurance.
I don’t know if you’ve ever been to an industrial coast but I assure you, they will do a lot to protect themselves while not doing anything positive for the residents of Louisiana. Oil executives and energy traders in Houston will reap the benefits while Louisiana gets a handful of mostly blue collar jobs in exchange for oil spills, cancer, destruction of wetlands, and climate refugees from rising sea levels.