I will start off with saying that this is a good video from a technical standpoint. It has good sound quality. As far as your discussion goes, I agree wholeheartedly that something needs to be done about children learning things only to pass the test. on the flip side of that one kid that you teach may need that one thing that is useless to everyone else. You never know when you have a future doctor or engineer in you class who is actually absorbing what you are teaching while everyone else's eyes are glazed.
Very good group conversation!