Maybe in some ways it is more about what we're looking for than what a teacher "should" be. Some like teachers who look 'at' us and focus on us -- it can give us the feeling of being supported and nurtured. Others prefer teachers who lok 'at' themselves and focus on themselves -- it can give us the feeling of being inspired and liberated.
Similarly with words versus demonstrations. Words can bring the feeling of nurturing and insight. Silent demonstrations can bring empowerment and creativity.
It's all about what you're looking for which is, in many ways, about what you think AiKiDo "is" which is, in many ways, about what you yourself are.