Then I would like to read your opinion
The prize pool for each game is randomly determined according to the prize schedule independent of any other games. You are just as likely to spin a million in your first game as you are your thousandth. A month coul have 20 million spins or 0. It's just the probabilities. Recall from the fist time
pokerstars did the golden spin & gos, I think there were three million dollar games spun in a pretty short window iirc, which is far more than probability would've predicted. But because each individual game is random, it's possible to have so many big buyin games in a short time period.
Basically what you said earlier is that the games are rigged to not pay out jackpots at first. That's a pretty big accisation. It would be very unethical and bad business too for pokerstars or any provider to rig their games like that. Perhaps such rigging is done with
slots - I'm not familiar with those - but I strongly doubt that any casino of repute would rig their games in any manner, especially this one.
The key for pokerstars is that they have a big enough player pool playing these spin & gos such that they can afford to overlay at first since it'll even out in the long run. Even if 5 people spin a million in a single day, pokerstars will be able to pay. Sometimes when companies do big jackpot promotions, they get insurance from an outside company. I have no idea if that's what pokerstars does but they might, in which they actually should be rooting for people to spin a million because it would cost them nothing seeing as they've already bought insurance (like when a furniture store promises to refund all purchases from the last month if it snows a foot on Super Bowl Sunday, the store would've insured their promotion and therefore would actually be hoping it snows a foot on Super Bowl Sunday on account of the good publicity it would bring)