Divisional dogfight.
There’s no such thing as an “easy” game in-division. Unless a divisional opponent is completely imploding, they are going to play you tough as nails. They know you better than anyone, they have pride. I’m not sure an in-division loss is ever an “upset.” Look at Kansas City in 2019 and ‘20 – then they were Super Bowl-bound Kansas City but still lost games to inferior Raiders and Chargers teams. The Belichick & Brady Patriots would lose in Miami. It happens.
If the opponent is actually good, that makes it that much harder.