Let me start by saying that I in no way agree with picking up the monstrance and dancing with it - not in the slightest.
Having said that - bear in mind that this video appears to be from BRAZIL and NOT any western country. And it appears to be in the context of some religious congress rather than a Mass or exposition within a church.
Let us remember that Brazil is indeed a country that has a very rich and long history of using dance for all sorts of occasions. Including, I dare say, religious ones as well.
And even Cardinal Arinze, bless him, has only ever, to my understanding, gone so far as to say that dance is not part of liturgy in the WEST and the US. A case could possibly be made that in Brazil, as in Africa, dance is indeed acceptable within certain limits.
Donāt jump on me for having said the above. Iām not stating it as certain and I for one would need to know a bit more, and certainly think this particular dance exceeded what might be permissible.
I think, though, that the God who was fine with David dancing in front of him half-naked isnāt averse to all liturgical dance.