Referee Mag Sept 03 page 21 double foul

[Mike Simonds]

Did anyone catch the error in this case play? In a nutshell, B intercepts A's forward pass, B blocks A in the back during the runback, then A grasps B's facemask in making the tackle.

Referee says enforce both fouls and B gets to keep the ball. I disagree. Under rule 10-2-2 B has to decline A's foul in order to retain possession (after being penalized for their foul).