There's a cafe to the right of the picture where you can get a nice meal and just sit by the windows. I think my favorite was all the lazy leopard and nurse sharks just 'bleh'ing around.
It's not like they're there explicitly for your amusement. Grow up. They're studied by marine biologists for starters. Your admission also helps fund that research. This is not a show to turn a buck. Plus the education/inspiration provided by any one of these fish helps spread eco awareness, compassion and education to millions in an impactful, personal way. The result being that the benefits of one whale shark in up close captivity far outweigh NOT having one. Get a clue, keyboard warriors.
Although in the wild whale sharks are thought to live for decades, it is known that their lifespan in captivity is significantly shorter. A study of 16 kept at the Okinawa Churaumi aquarium in Japan, one of few facilities in the world where the rare animals are exhibited, found it averaged less than two years.