I think Groin's confident enough to have Erbrand do what fits Erbrand's character. Besides, Eodwine doesn't run a "police state". This is a pretty easy going group of people in general, and Eodwine likes it that way.
I personally would be interested for Groin to reveal how Erbrand became such a broken person. I mean, someone that capable and strong, so lacking in basic confidence! This guy's history would be an interesting thing to learn about.
(hint hint)
Incidentally, seems like Saeryn's been pretty quiet lately. Wouldn't mind reading some of her refreshing personality at work. hint hint