Perhaps it's just me...
But from what I understand, the RC in question was the '
Basilica of The National Shrine of Our Lady of Aparecida' in Brazil, one of the Largest Roman Catholic Churches. Brazilian culture comes with many different actions - the same dynamic being present throughout Latin America. And apparently, the liturgy in this manner is allowed by the Vatican since the Second Vatican Council of 1962...for one must keep in mind Brazilians have different ways to praise and show their joy to God.
As it is, all papal masses in Brazil for at least the last ten years have all had something of connection with the cultural aspect of Carnival - no different than what happened when the Jesuits went to Asian nations (like St. Francis of Xavier) and presented the Gospel in ways similar to how the people understood/referencing aspects of Buddhist and Shinto imagery many times.
Thus, I don't understand the outrage unless people have had their heads buried in the sand all this time. For Rome has no intention of putting the lid on the issue so we might as well adjust and avoid Brazil if we are faint of heart.
From what I was able to find out, the Mass is the re-presentation of Our Savior on Calvary..
Other videos that gave more full coverage:
Novena Solene | Entrada de Nossa Senhora Aparecida - 2º dia - 04 de Outubro de 2012 - YouTube
And Pope Francis actually spoke at this Church recently:
Pope Francis celebrates Mass at the National Shrine of Our Lady of Aparecida - YouTube
The Pope at Rio - Visit and Holy Mass at the Aparecida - YouTube
The Shrine of Our Lady of Aparecida in Brazil - YouTube
Again, this the same church at which Pope Francis celebrated Mass today - the Aparecida Shrine. All of this was within the context of out evangelization of the youth, Brazilian-style - in light of World Youth Day in Rio and preparation for that.....
Novena Solene | Entrada da BÃ[bless and do not curse]blia - 3º dia - dia 05 de Outubro de 2012 - YouTube
Novena Solene | Entrada da BÃ[bless and do not curse]blia - 4º dia - 06 de Outubro de 2012 - YouTube
Novena Solene | Entrada da BÃ[bless and do not curse]blia - 5º dia - 07 de Outubro de 2012 - YouTube
And All 3 of the videos I had posted above are from separate days of a Solemn Novena which took place in Brazil in October, 2012, to beg graces from Mother Aparecida. The first video of the gaudy carnival float was presided over by Bishop Edson Taschetto (Tasquetto) Damian, the bishop of São Gabriel da Cachoeira, Amazonas. He was ordained bishop in 2009.
The second video with the chains and blindfolds (minus "Thriller" Michael Jackson), has Archbishop José Belisario da Silva as the presider. Archbishop Jose Belisario Da Silva of Sao Luis do Maranhao, Brazil, was appointed archbishop on June 29, 2006.
The third video with the carnival stilt-walkers, has Archbishop Murilo Ramos Krieger as the presider. He is Archbishop of Salvador (BA), and Primate of Brazil, since his appointment on 12 January 2011.