This is how gambling owners make money and turn rich. Is the owner have reached on the top list of the rich people of UK. Bet365 has years of history, and the reputation never declined. Soon we can expect cryptocurrency accepted gambling site owners getting listed on the top.
There isn't a lot of crypto gambling clients for this companies to get in the top of the ladder. Maybe if more people get more curious with gambling using crypto, we might be able to see them but right now or in the next year, I don't think we are going to see it yet.
There are several crypto gambling sites here that also accept fiat, so they may enter in the top casinos also.
But I believe once these fiat gamblers discover the benefits of using crypto casinos, they may convert themselves into crypto gamblers.
However, for now, a lot of old timers I think, still prefer their old ways, using fiat.
Maybe another 5 years or so, we will see more popular crypto casinos as right now, there are already known crypto casinos, even here in the forum.