It's just a coincidence in my opinion, unless you experience it repeatedly if only 1x then it's definitely a coincidence.
I also experienced it but not when playing at a casino that I just registered but when playing slots and playing in a slot game that I just played for the first time, then it will usually be easier to win even in the first few rounds it can produce, but I don't consider it as something that has been arranged because there are also when I don't experience that, so I think it's more of a coincidence or you could say lucky.