Two things. One, they don’t start flexing games until around week 13. And two, there is no chance in hell they take away the Cowboys and Eagles. Eagles are front runners in that division and the Cowboys get coverage no matter what.
This is what happens when you become a good team. You get more late/primetime games. I'm sorry you are stuck in the 2000-2015 era of Bills football when they were mediocre at best.