If you read the column, you'd see that Boz offers more than simply regurgitating the triple slash line. Evidently his only real power is direct pull, or into Fenway's huge right field. Crawford rarely drives the ball hard to left of center. Also, Crawford's range as a fielder is going to be an underutilized tool in Fenway, per Boz:
there will be no such thing as a bloop single to left, he'll play so shallow.