That just goes back to the main "problem" I had with how it was done. The infection had to be both extremely fast and extremely slow. Slow because it had to spread far and wide before being detected, but fast to make so many people go berserk on the same day. Any "you had to eat X amount" stuff would have meant there should have been fewer cases popping up at the start as some of course get there real fast by going ham on cookies or whatever. The long shelf life of flour and sugar basically guarantees this would not go global because a bad batch would not have time to spread.its illustrative, not explicitly that pancake mix. Some people will have eaten a critical mass of infected stuff. Maybe Joel/Tommy/Sarah ate some too but the only parts we see are them managing by happenstance to avoid flour.
Not everyone got infected by flour but enough to trigger what came next.
Of course we don't really know how things are outside North America and probably Indonesia, but even spreading across America is sketchy. The pandemic having a specific day when things went crazy basically requires a smart mushroom, and I don't think that was the intention.