I used to teach in Primary and Prep schools, done some goverment education advising and give talks to parents.
I agree with OP, the video is inspiring and very heart warming and it is great to see pupils so engaged.
But also agree with OP on the fact this isn't neccesarily the way to be an outstanding teacher. I think schools need all sorts of personalities as teachers, my DCs best teachers have ranged from the caring ever so positive teacher to the super strict but fair where my DS thrived on routine and knowing what to expect to the one who taught through being a performer, similar to the video, a big booming voice and lots of visual props.
I think all teachers need to be adaptable to their specific children, if every single lesson was like the one on the video- fireworks, expolsiions, big showy voice then its no longer as engaging and learning points can be missed. Children need engaging lessons and times where a teacher whips out a few tricks but also times of calm and an approachable teacher who they can communicate with and know what to expect from.
I, too, worry about the recent promotion (mostly from USA) of this idea teachers need to be highly inspirational show men and women. A culture of not respecting a teacher because they aren't making something OTT exciting is causing huge negative attitudes. Yes some concepts need to be presented in an innovative and inspiring way, but there are just as good teachers who are more calm, sensitive and engaging through over means. Not every child suits a loud, over powering teacher. We need a few who act that way, but not a school full of them.