It is a possible theory among others. When Verduci was killed it was reported that there were two Ndrangheta clans that were having a fall out. It was alleged that one of them had close ties with the Cun-trera/Caruana clan.
That would be the Aquino-Coluccio clan.
This article is dated prior to the Verduci killing.
"When police arrested Mafia fugitive Giuseppe Coluccio in the GTA in 2005, they noted he had ties to the [BadWord] crime family, according to Italian court documents."