While without a doubt the brand is important that comes after you have created a good casino, after all it can be a huge issue if you named your casino in a way to it is too similar to another casino that was known for scamming their customers.
You understand my point because some people seem not to understand that a good brand name after the casino presented good services to their users. It the something like some popular clothing an example Fendi, Nike, etc. People choose their brand because they give them something that wanted thats why they always when to them for more.
The same thing happens with casinos if they provided good service that gave their user incredible experiences.
Also the name has to be short and it has to be catchy so people can easily remember, however while this is important the functionality of the casino is even more important as without that no one will be interested in playing at that casino at all.
The casino name can be catchy but what most gamblers care about is enjoying every little bit of the time they spent in the casino, the fairness of the game, good customer, and fast withdrawal.