Yeah, i understand. There are many regulatory challenges to be both casino and exchange. Although, betfury is already both. However, it looks like it is an exchange in a more discrete way, so regulators aren't looking at it. At least not yet.
Anyway, betfury is a great casino and the only one I have seen to be both casino and exchange
Regulation strongly depends on which jurisdiction the project is located in. Personally, I think that Betfury will have no problems with this since the crypto swap on the Betfury site isn't a full-fledged exchange after all. Rather, it's an additional option that compensates for the lack of BFG tokens on centralized exchanges.
There is a difference between having primarily a specific option (casino)and some secondaries accessories and in the other side, operating as full exchanges.
There is a lot of services that are operating this way and I know a couple of cryptocurrency wallets that offer a built-in or tierce exchanges services. There should not be a problem with that because it isn't intended to switch thousands of assets like real exchanges do.