Well, it's tricky . . in a traditional Japanese dojo everyone is trying to model their teacher, their senior, etc. But then if part of what's demonstrated is to lecture and teach at the microcosmic level, then everyone will model that to some degree. If you're told not to do that, but then that's what modeled . . you see the disconnect? There's no easy fix, it's just something to be mindful of that may need to be addressed at some level in some way (even if it's just to reconcile it within yourself).
Although I train in a traditional dojo in NYC and with Ushiro Sensei here and in Japan, I do not teach in that manner. I specifically do so because I do not believe that it is the most efficient and effective teaching model. I am careful not to let the feedback loops destroy the continuity and flow of practice. The feedback loop is critical in stopping the reinforcement of mistakes at an earlier stage, while setting up the awareness of "burning in" better movements. My teaching style is in development as I seek to find the best teaching model. That means effective, efficient teaching that allows my student to hopefully go beyond me.