I can't disagree with you general hercules.
I'm wondering if Rafa is going to start running around the backhand more if he can't get good depth on it?
That might be a short term fix until he can get out there on the practice courts, but it does leave him open to the angled cross court shot to his forehand wing, especially if he is somewhat sluggish and/or the ball is moving through the court quicker.
Respectfully,
masterclass