CAPs did not have their original BSTs reduced. A few years ago, we thought it would be a good idea to update some of the original CAP pokemon, and make them supposedly "better". We expanded their movepools, altered BST's, etc. After some time, we realized that the updates were a bad idea, for many reasons that I won't go into here. So we reverted all the updated CAP pokemon to their original state, as they had been created in the first place. So their BSTs were not reduced really, they were "restored" to their original state. CAP now has a firm policy of not changing CAP pokemon in any way after their original creation.