QB is still the most important position on any football team. Regardless of the rule changes.
They are the only player that handles the ball on every offensive snap of the game. Unless a wild cat type play obviously.
This is where his decisions take note over any other player. Calls the plays, audibles, RPO's. Then reading a defense to make those decisions as well, where to throw the ball.
So no, it should not be devalued. I get the question, because the contracts have exploded, and will continue that way.
However, the play is still the same as it always has been for the basics.