It was something to address the surge of volume that resulted from COVID. It strained resources (pilots, planes, line haul) unlike ever before and no one knew how long it would last.
Doing nothing (the preferred solution of couriers) would have resulted in longer sorts at MEMH, which would have resulted in even later flights, even later sort starts at the station level, longer sorts at the station level, and later sort down times. Would have also created a need for more AM routes, more trucks, and larger buildings in some cases.
There was no scenario in which additional flights and additional sorts could have been avoided, which any courier with even a modicum of intelligence and experience should have known.