in general most troops under his command were expendable some less than others if he had cared he would at least have given them some target practice time
Target practice wouldn't do any good when the universe itself is trying to keep certain people alive.
I mean, haven't you seen how lethal his troops are against those who AREN'T Force sensitive or main characters?
The 501st were adept at eliminating even force users. And the storm troopers deliberately allowed the Millennium Falcon to escape so as to trace it to the rebel base.
I mean, haven't you seen how lethal his troops are against those who AREN'T Force sensitive or main characters?