The idea that some unnamed medical professionals had diagnosed Maciel with multiple personality disorder was floated when the Legion first announced existance of the mistress and daughter. It was never mentioned again until the highly enlightened Errazuriz blurted it out the media, with no proof, in Chile.
In private, high ranking officials of the Legion have denied that any doctors made such a statement.
But current Legionaries and members of the Regnum Christi will look for any life-line at this point.
More thoughts from Peter Vere:
In a story circulating South American and European media, Santiago's Cardinal Francisco Javier Errázuriz appeared nationally on Chilean TV and said: "Los médicos cercanos al padre Maciel han dicho que tenía dos personalidades distintas. No solamente un tema de doble vida. En un momento era el fundador y en otro era un pobre hombre."
Here's how a Spanish-speaking reader translates His Imminence's words: "Doctors close to Father Maciel have said that he had two distinct personalities. [....] In one moment he was a founder, and in another he was a poor man." [...]
That being said, there's serious questions to be asked if the dual-personality explanation is taken at face value. Why do no one in the Legion notice Fr. Maciel was switching back and forth between personalities? If it's because he was never the "hombre" when around the Legion, then how was he able to switch so conveniently between personalities? And how sure is the Legion leadership that the Hombre Maciel personality never played a role int eh founding of the Legion of Christi/ Regnum Christi movement?
I'm afraid this attempt at an explanation raises more questions than it resolves.