How many tourist authorities are there in Thailand that they need a federation to oversea them. Maybe if there were less or, heaven forbid, only one the 700m baht would not be spread so thinly and be more than enough for their needs.
Considering this is an effort to limit tourism, while the PM is busy building an F1 circuit one minute, the World's Tallest Building the next and dishing out free visas with both hands it seems to me Adith Chairattananon isn't listening to the push for "more tourists" by the government.
Tourists are already cheesed off by all the scams and legal double pricing that another 300 baht will only help to ensure they won't come back.