Dread Gaze is broken, but it doesn’t mention any chance of frenzy, and that’s the way I’d like to un-break it. If a character is reduced to zero dice through an extended Dread Gazing, they automatically fear-frenzy.
The first time Dread Gaze is used on a vampire, they make a check against a rage frenzy. Since it is momentary, there is only one success required to avoid it, but there’s some chance that screaming in someone’s face and showing your fangs will set them off.
When Dread Gazing mortals there are no such limitations.