When we decided about number of planes, it was decided after the required airplanes for the offline timetable. So we have only 6-6 class-1 planes because they fly "all day", and can make a lot of scheduled flights. We have 30-30 class-7 planes, because those fly only 1...2 per days, and we need those many planes to be able to fill the timetable.
ProPilot is different. We have only 1...2 dozens of ATP pilots, who will not fly alltogether the same time, and probably not fly the 747 all of them. This led us to reduce the number of airplanes according to the number of pilots, so we reduce planes at high classes, and increased them in lower classes.
If you think it is a problem, that the 2 system uses different number of planes, they can be equalised
