Are they trying to lower viewership?
Not appealing matchups. A few things:
1) In pre-season, that Den/Buf game might have looked better.
2) By contract, these teams have a limit on how many prime-time games they can play. Used to be a Max of 6 games...and a Min of one game.
*When the Lions were down, their only key-time game was often the Thx-giving day game.
*I know the Thurs games were designed to put each team on Thurs ONE time during the year. Not sure if that rule changed.
Net effect is that one can expect the best teams to be on MNF 3x. I think that's the cap. But there's a cap on how many prime-time TV games a team can play.