I agree.
Ancilliary muscles like the forearms, biceps, traps, etc, don't really need to be trained unless you are a very serious competitive bodybuilder who needs to show maximum devlopment and detail of all muscles. These bodyparts are already worked every time you train the muscles of your upper body, so training them directly often results in overtraining and hampers your strength gains in all the big exercises that require these muscles to be performed. Also, it is debeatable whether traning these muscles directly even make them grow more than they would if you only usd them on the big exercises, as their size is mostly genetic and doesen't seem to respond to direct training as much.
SUCKMYMUSCLE