:TWho’s to say they weren’t just a day behind?
That's a total ass-pull and you know it.
That would mean all 5 Kage simultaneously decided to send an entire army after 1 Jinchurikik, Henshina, which is the only jinchuriki they should've known about when deploying forces.
So an army could not logically be a day behind, it wouldn't even be ready to depart.
The only Countries that have any reason to have an army up and ready are Kumo, who gathered from reports, and the Mist who just fought Damos.
Since Damos just shafted the Mist's armies, clearly they're not going to win any fights.