Having lack of long lasting campaign made me think that they don't really have huge budget to use for marketing that's why those things they do is only for short term since that is what they can afford. So maybe for now they could at least give some nice offer when it terms giving generous rewards on their contest. Provably this could catch up the interest of gambler to spend lots of money to gamble in their casino. But despite of that we can still say that they are still profitable, but its just they can't support well their casino thru long term marketing since it eat a lot of their budget and they can't afford to lose huge budget since maybe their funds is limited.
If you look at their updated tokenomics, two categories can be attributed to marketing in one way or another. These are community and collaboration. The community category is allocated 500 million BFG tokens, and it looks like it's used for various events and activities, while the collaboration category is allocated only 133 million BFG tokens and is used for marketing initiatives and collaborations. That's a total of about 14 million dollars at the current BFG exchange rate. If the Betfury team is really only using these funds to promote its project, then yes, we can say that they don't have much money for marketing compared to other gambling projects.