Christie's and "transparency"

Sardinian figure from Medici Dossier
Source: Tsirogiannis / ARCA

Back in November 2009 (i.e. 5 years ago) some objects that passed through Christie's were seized and subsequently returned to Italy. When I contacted the press office at Christie's I was informed "the transparency of the public auction system combined with the efforts from the U.S. ICE and foreign governments, in this matter, led to the identification of two stolen artifacts". The Attic pelike and the Apulian situla have now been returned to Italy.

Five years later, a Sardinian figure due to be auctioned at Christie's appears to have been identified by Dr Christos Tsirogiannis from Polaroids in the Medici Dossier.  The posting of the catalogue ('the transparency of the public auction system')  has prompted the identification.

If the pelike and situla can be described as "stolen" by Christie's because they appeared in the Becchina archive, how does the same auction house describe the Sardinian figure?