Yeah other than staking/farming and betting, they have not added new utility to the token that actually matters to bettors (yet).
What else would you want to add ? The cashback is based on VIP level (like it should be) and all bets that you play with the BFG token are also taken into account to level up.
An example would be increasing user
XP on leveling up when betting with their native token compared to other cryptocurrencies that's based on USD value of bets. Again, that's just an example and they can think of something creative that would bring new interest to the use of BFG.
I do agree that the best thing to do right now would be to add in some incentives to gamble with BFG, that way a lot more people would gamble with it. Starting with more promotions, to rewards, to lower house edge, to competitions and many more things that could be done to give people a reason to gamble with BFG over any other currency.
This means that people would be missing out on a lot more returns if they gamble with any other currency and why would anyone want that? Sure some would want to stick to their own preference, but any other gambler who wants to squeeze out the most will turn that into an advantage and make money that way for sure.