It's a meaningless screenshot of a simulator which itself is probably not properly randomized (because it is near impossible to do it efficiently on a computer). If the random number generator has any flaws, they will be amplified over so many iterations, but you can bet that the casinos put a lot more money into their random number generators to maintain accuracy, rather than your most likely free, piece of software. The underlying math is rather simple and doesn't need a simulator to tell you  the long term outcome. If you re-ran this simulator another 10,000 and were sure it was re-computing the odds each time, then that would be more interesting to see, but again it is likely to only highlight the flaws in this program's computations and nothing else.