I dont understand you can have a mind like that since when sport betting have probably fair or not, you only need worry they will pay you or not if you win.
Provably fair mechanisms are completely essential to a good casino. It doesn't matter if they pay you when what they're paying you was very unlikely to happen. The games might be seriously rigged for all we know, and it's not just about sports betting, it's about the fact that probability games aren't provably fair and they're run by the same service as Sportsbet.io.
Importantly, sportsbet.io already have scam accusations against them, such as
this one, whereas I can't find scam accusations for any other sports betting sites. Sportsbet.io seemingly hold peoples'
own money when they suspect them of fraudulent activity, which is pretty dodgy. If they're tied to casinos which aren't provably fair, the whole complex might be very elaborate selective scamming. Especially since they never respond to anyone who's against them on the forum.