Slitherine

In the Sekigahara (Toyotomi) battle, the betrayal of Kobayakawa Hideaki results in new enemy units appearing behind the Toyotomi right wing; however, the units that were previously on the right wing (in the woods) remain under player control. In the actual battle, these troops went over to the Tokugawa army along with Hideaki's troops.

Is it intentional that the right-flank units remain under player control after the Kobayakawa forces are deployed?