The reason the offensive has become so weak isn't because there's a problem with the commander, but because all the soldiers are experiencing issues.
Many of the soldiers here have family living in the rear. Otherwise, the Alliance wouldn't feel assured.
The scope of this rebellion is too wide; it's simply impossible to keep the information hidden. Even though the Alliance has tried its best to suppress it, in this interstellar environment, communications are far too easy to transmit.
When many people learned that problems were happening in the rear, they lost the will to fight.
Yet the Alliance upper class is still forcing them to continue fighting, which has filled the soldiers' hearts with anger.
This world is ultimately not one where there's extremely strict control over the military, let alone over their thoughts. The usual lenient environment has led most soldiers here to treat being a soldier as merely a job, nothing more.
