User blog comment:DBard/Magicians/@comment-162.202.198.72-20130912061332/@comment-1359322-20130912105031

Issei already decided to trust Ravel's choice so he won't complain a thing about it. After all Ravel is taking care of Issei's reputation, she just choose the best magician among the list handed to her. Remember choosing a lousy magician will result in the Devil's reputation being lowered. That alone can cause Issei his chance for a promotion to High-class Devil.