Please, stop it. Non-Divisional game is never more important or bigger than Divisional games unless it's the last game of the season that decides home-field adv.
If there's a rematch in the playoffs the outcome of tonight games mean ditto. Circumstances changes, play calling changes, knowledges gained and get processed, players and personnel progress changes, momentum changes. The air they breathe tonight changes.
If there's a rematch in January everything from tonight games will change! If there's a team that won't accept that fact, that team Will lose every time.