Those who have a lot of fan followers should definitely be careful about such promotions. If they take the risk of losing such a big account for a small profit or for short-term gain, it is their personal matter. But before promoting anything, they should definitely understand the matter well. If the governments take any action against those promoters, then they will be the ones who will suffer the most. In my opinion, those who have a lot of fan followers should definitely try to be aware of the issues. If he is not a part of any illegal promotion, it will be beneficial for him in the long run.
You are right because people worship their celebrities these days and will never doubt whatever they are told by those influences. So the government took a good decision in going after influner. If they must promote, they should remain with the legal casino.