Re: a teaching mistake
Sounds like you bit off more than you could chew....kinda....I think you did the right thing by stopping practise and redirecting the other students focus to a different technique. You were, maybe, too far down the road to turn back and re explain what you were trying to do (dojo energetics from the instructors POV are very interesting eh?). Next time break down the "advanced" techinque into principles that can be easily understood and shown to your classmates. Put them together in a logical way over the time of the class as drills or smaller pieces of the larger technique and save the advanced technique (where these principles or pieces of technique come together) for later in class.
On the bright side you'll never make this same mistake again:-)