I don't know if the remaster works this way, and obviously once your realm grows large this can be tedious to do. Not sure if it works this way in newer games, and frankly there are far fewer negative traits anymore. But old habits die hard and I still do this in any TW title just in case.
Speaking of negative traits, Attila is absolutely the most brutal when it comes to issuing those out to your governors and generals. The infamous one is "Blind" which reduces the three major trait categories (authority, zeal and cant remember the third one right now) by -5 each!