In the long run, I feel sure this will only serve to deteriorate the schedule II barrier. Most doctors are not going to let their patients languish in pain when the same established medication is still available. They'll just need to stock up on CII prescription pads and carry on. Eventually, other CII medications that have been out of favor will have increases in sales because prescribers will realize that if they are going to write for a CII, it may as well be the the most effective choice.
Patients preparing for surgery should always meet their surgeon and anesthesiologist beforehand and discuss post surgical pain management. If the doctor won't commit to top quality pain control, that should be a deal-breaker except in an emergency.