I`m sure that there will be people, who`ll visit such casinos only because "i saw it in the film".
there are places that are literally advertised as part of the film like singapore with marina bay sands and merlion park as spots for the film crazy rich asians movies or films that do well tend to be huge parts of the culture and people end up associating certain locations to the films where they have watched these locations in
We also have to remember that Thailand is touristic country, so it would be lots of visitors with money they plan to spend. Why not to spend it in casino?
casino is another reason for tourists to visit the country so that should certainly be a plus to their tourism