Of course they need to either do marketing for the different games they have and make it bigger, or they could simply add more this type of different games, but whatever they end up doing, being different means that you could get different sort of people. I personally didn't played so far, I just wagered on the sportbook couple times to see if I will like it enough to change mine, but addition of different games could make the whole website all around more desirable.
One thing they need to add though is their gambling license. I haven't seen any gambling license logo on their website? Is it on the works or what? I think that would signify that they are pretty serious in getting a position in crypto gambling community.