They're like exchange tokens. They have their own business behind the token that was produced. But even if the casino is performing well, there can be instances that the tokens won't be perfectly good for them. Because the market of these tokens are separated from it but the connection is there when the demand increases that's being done by the casino itself for the benefits that they offer to their customers by just simply holding the token into their platforms.
Though , I would argue exchange tokens have some advantage over casino tokens when comes to creating demand to favor the price of the asset and keep early investors happy. Casinos and Exchanges both win from the high volume of transactions/bets-gambling that take place in their webs. However, exchanges have more creative ways to create perks and advantages for token holders, in order to incentivize the demand for it. Binance being the biggest exchange of the world can afford to even to further than just creating perks, they actually had a burning program for their BNB coin. That is something I am yet to see from a casino. Generally, casinos limit themselves with offering some passive earning and cashback and bonuses.
They are different markets, but the trend of in-house tokens, Exchanges are definitely ahead casinos. In spite of regulators bugging them both.