If you are in the SEA region, pretty sure they advertise everywhere, with Pacquiao and many other local celebrities.
Of course, in the global casino market it is extremely difficult to somehow compete with the leaders of this market, about which everyone here is well informed. And occupying a regional market niche is a logical development, entailing a successful casino business.
Most likely, you are right that in percentage terms there are more players from the USA, EU, as well as from Latin American and African countries. But the SEA market is also huge, given how popular gambling is in this region.
I believe it is not difficult to compete here in the West, there is a very large portion of the betting market that has not yet been filled. And in many cases, customers who are from one bookmaker also go to others because of the odds. But when it comes to Asia, it is really something much bigger, due to the population and the popularity of sports that are better seen in the West.
In any case, I wish BK8 good business and development in this region and beyond its borders as well.
In this case, I don't think it's even a matter of religion. It's more a question of the general culture of Asia, or nearby regions, of being closer to gambling than other regions in the West. This ends up giving betting houses a much faster growth in Asia than in any other region.