Pugger
Cheesehead
In my opinion the Saints losing to the Falcons at hone was the most stunning upset of the ones you mentioned. The Chargers are better than their record might indicate and the Texans are a playoff team.
The Packers would clinch a playoff spot by winning their next two games if the Rams lose one of their next two.
If the Vikings lose to the Lions this week the Packers would clinch the division title by winning their next two.
It's unrealistic to expect the Packers to get the top seed as the Seahawks and Niners would have both to lose another two games and the Saints another conference game.
Yes, the Texans are a playoff team but as I said I doubt many thought NE would lose to them last Sunday.