Can't this be determined by watching a loading process? There has to be one.
I'm guessing there are multiple steps to the process. I wouldn't think that the hits were part of the uncut sheets - if they still even do the printing that way, so they would have to be separate. You would have to monitor which hit goes into which packs, then which packs go into which boxes, then which boxes go into which cases, then which cases get sent where. Unless they were playing with a deck of marked cards, I think it would be difficult at best to keep up with what went where. Without knowing that, it might be easy to play the shell game and control which boxes had the most or better hits.
As Ernie stated, there is no random in the real world - there is always some underlying process that forms the algorithm to determine what is next in the sequence. Why do you think in our fully connected world, we still have paper ballots for our elections? If you can't see it with your eyes, and even if you can, can you really trust the process to be fair?
Its funny DrOno mentions the golden ticket….when my kid and I were opening packs of ANS, we would sing “I got a golden ticket!” We never actually did get anything great.
If you read the article, they mentioned you could get a lot of hits if you were like Rupert Salt. He's Veruca's father, and she was the only one who obviously got a golden ticket from opening lots and lots of boxes of Wonka chocolates.