Did Sai Baba forbid Balasaheb Deo from reading the Dnyaneshwari because he wasn't yet worthy?

The text does not state that Sai Baba forbade Balasaheb Deo from reading. In fact, the decision to stop trying was made by Deo himself out of frustration. According to Chapter 41, after repeatedly failing to maintain a daily reading of the Dnyaneshwari due to various obstacles and internal doubts, Deo made a personal resolution. He firmly decided that he would only commence reading the sacred text again when Sai Baba Himself gave a direct order, placing his faith entirely at his Guru's feet to initiate the practice.