What a convoluted thought process you have. Dak Prescott is not Matt Stafford. Stafford's accomplishments have nothing to do with Prescott and do not justify the thought that Prescott can take the Cowboys to an SB.
However, I accept your premise that the team being good is more important than the QB. Football is the ultimate team sport and so even though we don't have a QB that can put this team on his back and take us to an SB, we can continue to build this defense and have them take us to an SB.
We've seen ample evidence to know Dak is not capable of taking this team to an SB on his back. Dak is not "The Guy". So stop killing your own message of football being the ultimate team sport by praising Dak.