There’s not much of a debate whether quarterback is the most important position in professional football - most certainly it is - particularly as the NFL has changed the rules over the years to favor passing. The quarterback is the only position other than center that touches the ball every play (wildcat and special teams plays aside), and his ability to distribute the ball effectively is critical to the offense- and scoring the points needed to win the game.
In fact, the prominence of the quarterback position, particularly when it comes to highlight reels and media lionization of QBs like Tom Brady and Patrick Mahomes, Aaron Rodgers and Peyton Manning, has given rise to the debate about whether wins are indeed a QB stat, and not a team stat as is more commonly thought of, simply because of the importance of the performance coming from the quarterback position.