Of course the Max issue has increased overbooking. THey are trying to use as much of their fleet as possible and optimize to compensate. Which means there is even more demand for inexistent extra capacity. Alternative would be to raise fares so as to reduce purchases. Is that better?On routes where demand is below expected, they proactively cancel some flights, and redistribute the load to the remaining ones, so as to free planes to reassign to different routes where they don't have capacity. They are cheduling Rouge 763 on normally mainline routes. Doing what they can; hence quite a bit more schedule changes than usual. Persoonal experience too BTW.