The author claims Sai Baba himself is writing the story. Isn't that just a convenient way for the author to lend credibility to his own words and avoid taking responsibility for the content?

The text directly addresses this by framing it as a divine directive from Sai Baba. As Chapter 2 recounts, Baba felt compassion for the author and gave his permission to create a collection of stories, promising his full help. Sai Baba is quoted as saying, "He is merely a pretext; I myself shall write my own story! I should tell my own story and fulfill the devotee's wish." The condition for this divine authorship was that the devotee must dissolve his ego and surrender it at Baba's feet. The narrative suggests that when this surrender is complete, Sai Baba himself enters with 'I-ness' to write, making the human author only an instrument for a higher purpose.