Every gambling project is constantly spending millions of dollars on various purposes but they don't focus much on their token. If they pay little attention to their token then their token will move to a better position in the market. Because their platform is gambling and they have millions of gamblers on their platform if they see that their platform token is also in a good position then those gamblers will start investing in that token as well. This will also be a plus point for that gambling platform
They got their money when they sold it. I don`t think they need to do smth else with token, now it is a problem of the buyers. That`s why i say that such type of investing is the same with any other cryptocurrency investment - just try to sell higher. Of course the devs tell us how they support the token, but i heard it lots of times without any actions for support.