Codestar Framework related soft rejection Issue

I used CS Framework for my First WordPress Theme. But, I am getting several rejects about using call_user_func() - This function in . framework.class.php & options.class.php - 5 times

But,I seen many themes using same folder and version as well as call_user_func and got approved!!

Anybody expert can help me Please, who used this framework in Their Theme.

WordPress’ hooks system (action and filters) is built using call_user_func and relatives. TF should hire some php consultants in review team.