That's common action done by the casino, because this is the easiest actions to do.
But I guess you need to grind to earn more points from them.
Also look at here
https://coinmarketcap.com/view/gambling/ casino tokens are not in good state now. Hard to guess if there's other great more offerings. Or maybe they will just released same thing and their token will get stuck similar on what happen to those tokens handled by big companies.
You talk right but it's common issue with most tokens, not only tokens launched by online casinos. Even tokens than plan to build up infrastructures like layer 2 failed severely because about 2 years after layer-2 hype, almost nobody use those layer-2s then without income, many layer-2 projects closed their services even they used to raised millions funds.
Casino tokens if have use cases will not die like that, at least it will be used by casino users but to have price growth, it will be very challenging. Firstly casino tokens must have good tokenomics to avoid inflation affects prices. Next but very important, casino tokens must have many use cases so that their values increase with time.
I am not too pessimistic about Reroll token, wish them best.