There's no real need for game to game grades, he has arrived. And, unlike previous "hot streak" QBs, there is a big difference with Allen. In many cases other "hot" QBs only lasted until the league figured them out - because they had good skills but lacked talent. With Allen, the reverse is true; he had great talent and needed time to build his skills. So instead of the league figuring him out, he's figured the league out, and now he'll be a star player going forward (barring injury).