This is I believe what if felt by most slot players on their early days because I also thought the same years ago, blaming myself with a question like "why I did not choose the one in the middle or in the left corner" LOL.
The same as other games where we need to choose a card to get how many free spins to play or which multiplier we'll get to be used on the free spins, some time the above question still come to my mind .
As we know about it already, now we can tell others especially our friends who like to play slot to get relax when it comes to this kind of "choosing game" because no matter which one we take, it wont change anything as it is predetermined.