Could this be part of Francis attempt to unthrone the Papacy and present himself only as a primus inter pares to the world than Christ’s Vicar on Earth? Certainly it is the case that his election has been met with almost delirious approval on the part of many undesirable personalities in the modern Church.
A faithful commenter reports:
The Ordo Rituum pro Ministerii Petrini Initio Romae Episcopi thus approved in 2005 contains not only the rite of the Mass of the Inauguration, but also that of the Mass of the Enthronement of the new Pope on the Cathedra Romana, the chair of the Bishop of Rome, in the Lateran Basilica, Rome's cathedral and the Roman Catholic Church's primary Basilica, outranking even the Vatican Basilica. Popes usually take possession of the Lateran Basilica within a few days of the inauguration of the pontificate. Pope Benedict XVI did so on 7 May 2005. This rite, known in Latin as the incathedratio, is the last ceremony marking the accession of a new Supreme Pontiff.