You are right in fact, the market is highly competitive and nowadays people needs to see some fairness or a kind of promotion to attract their attention. Moreover mos players I mean gamblers always have theirs favourite platform that is more suitable to them, so to attract attention to the site they need to do something extra ordinary to prove to its community that it's worth using or testing the site maybe it could something like free spin, ref bonus, high odd and many more to attract them since the market is extremely competitive for sports betting.
We could able to see that there's lot of discussions about various sports in forum so we can really say that demand of it is so high. But what make people to decide on where to gamble is on how the casino market or create a promotional campaign to catch their interest. Lots of casino is doing good to introduce their casino and most provably they are the one who could able to get a lot of attention from the gambler here.
If they don't do anything then provably that there's nothing will happen even if they offer this option since there are lots of casino doing great promotion which is really appealing to gamblers. Hopefully they became competitive and launch something attractive which their potential gamblers to enjoy.
Well that is true thu but sometimes accessibility matters in these casinos especially in terms of withdrawal if gamer or gambler don't understand go through stress while having their pay out from the casino, and of course every gambler including you and I wouldn't want to go through stress to have our money get withdrawn from the casino most times if the team or customer care service quickly respond and solve some complaint makes gamers to pick interest in a particular casinos.
Apparently if they have lesser bad rating then it becomes so common for people to come over the casino because what actually bring down is lots of high complaint or scam accusations being too high in a particular casino in could make gamblers reduce their attention in a particular casino and not only the promotional aspect of it.