The slots system is based off a userodds system. That certain user had certain odds of getting the big time.
The odds of getting three wings are probably 1:3001.33
Which means somewhere in the 3001 pulls, you will get three wings.
This system keeps those odds exclusive to that person. There is no luck, unless it's your first time playing slots and you get three halos, then I'll hunt you down and kick your a**.