Yup, when things didn't went according to your expected outcome especially when you're done with your research, when you think that everything is moving according to how you expect but it turned against you when the outcome was announce, there are many rumors that circulate and the gambler who lost their bets surely thinks that they've been scam.
But, that's for sure is not new as there are upset that happened and even the heavy favorite loses their game and bring dissapointment to every bettors who believes in them,.
Having such thoughts may be a fairness but on the other hand we also have to think rationally because in this case when we lose it does not mean that we are also victims of fraud but it is necessary to realize that gambling still has strong things that must be realized, namely luck.
If we think more positively then we are not lucky with it, especially gambling is something that is indeed difficult because the ratio of defeat will be far greater than the victory that is owned so in the end we must realize that before overthinking and assume we are cheated by the gambling that occurs.
In the end, when we start to gamble, we must realize that gambling is not easy and we cannot expect more for every game with victory because it is an impossible thing to happen in gambling.