Oh, my!
M&B has been a great program for status, but for a long time it's been a terrible program for awards due to:
1. Low earnings in many classes.
2. The ridiculous rule of maximum two flights per one-way award.
3. The even worse rule about no mixed classes.
4. Low availability for award seats for several airlines.
5. Often very high fuel surcharges.
With this sudden raise in award mileage, M&B is now a horrible program for award redemptions. Maybe it's time to move away from M&B to some other program.