Farrell claims he was blown away because he had hardly any contact directly w. Francis.
Perhaps it was letter of recommendation from Fr. Marcial Maciel under whom he studied while with the Legionnaires that impressed F.
He claims that the HS is speaking through AL. 
Again, he was theologically weaned under MM so his analysis must be authentic.  Read MM's, Christ Is My Life, where he claims the HS inspired him, too, at age of 16 to found the Legionnaire's.  A theological stream here?