I agree on the XP value. The others have nothing to do with some type of unit class, but have to match the "worth" of a unit on the battlefield.
Manpower cost/pop/tech is all related to role and how it compares to alternatives.
The command P4 has about the AI of a normal P4. You basically trade the AT capability for utility and some all in all cheaper cost. It is incredibly strong in team games when you can support your teammates' forces and literally buff units worth >100 population for a coordinated push. But this mostly works in large games with arranged teams. In smaller modes, especially with randoms, it does not, because you only buff your army, half of which is probably somewhere else or cycling between frontline and base. A similar effect comes from map size.
Overall it is a good unit, but just like many heavies, it works better in larger modes and is hard to fit in smaller modes.
I have played several large mode games and I hardly see the unit.