C Pz4 can not stand on it own legs since it will lose to any medium tank at any range even at a T-34/76 although it more expensive. So it needs to be supported
No vehicle is "sacrificed" (I guess is what you mean).
Churchill can be used also at command vehicles and even vet 1 Centaur since the can still use their ability to damage infatry. AEC is the most cost efficient choice but that is not a bad thing, in the case of the C. Pz4 there is simply no choice...
C.Pz4 allow to survive damage that would be lethal otherwise but I doubt that many people would risk 8 HP entities and 64 HP medium tanks and risk them in a fight.
There are two UKF commander with c. vehicle upgrade not one. Royal Engineer Regiment and Tactical Support Regiment. There 5 ostheer commander with C. Pz4 and given the fact that there more the twice Ostheer commander than UKF it makes sense so again no "bad thing".
- Royal Engineer and Tactical support provide UKF same fromula meanwhile 5 OST doctrine give you 5 different way to support main army. (1)
- Churchill, Centaur cost you bunch of Fuel, manpower and Pop. Now wasting it just for a buff. No wonder why 80% UKF player in 3v3 4v4 better commit suicide due to their choice. (2)
- Because of (1) and (2). CMD Pz 4 is more popular from 1v1 to 4v4. raito is about 1 to 3 game with CMD Pz 4 doctrine in every 10 OST game.