The National Football League is always trying to push the envelope, and they are never scared to try new things. Say what you want about the league, but they know how to market, and profit, from the game/product they put out. As an example, when fans mocked and made fun of the league doing Thursday Night Football, they turned it into a billion dollar television contract.
The league is trying to change up their product again, and it starts with their plans for Monday Night Football. Having two games on Monday night is nothing new for the NFL, up until 2021 the NFL always had a double header in Week 1 on Monday night.