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This is why I believe that we should not be waiting for them to promote something, they should be promoting the website itself and that is why it should be available for promotion without a need for something new at all.
The problem here is that the market of online crypto casinos is very competitive. There are now countless platforms and a single player often has accounts on several different platforms (I certainly do) and regularly switches between them.
Contests such as waggering contests simply attract a lot of people and ensure an increased gambling volume while the contests are running. As soon as the contest is over, the players look for other platforms that are hosting such contests. Focusing only on promoting the website will have much less success than classic advertising methods such as giveaways and contests.