What actually happened to the New England Patriots is simple. In the NFL, unlike college, the margins between teams is often not more than a few points either way. A motivated Chiefs team ran up against a cocky and depleted Patriots team (not excuses, facts) that was too slow and came out with their heads up their asses. Full of themselves. It didn't work, and they lost.
On the flip side, they have been here before. Colin Cowherd tells it like it is, and then calms you all down with some proof about Tom Brady and the Patriots. Listen here: