Why doesn't the Sai Satcharita list all the important saints of its time? Does this make it an incomplete text?

The preface of the Shri Sai Satcharita, found in Chapter 0, clarifies the book's primary purpose. While it acknowledges that writing the biographies of many saints is a form of Guru service that yields spiritual fruit, it also states this approach can be "one-sided or partial." The text posits that the most certain path to salvation is to focus on the biography of one's own Sadguru, to study it regularly, and encourage others to do the same. According to the author, the ultimate spiritual goal is difficult to attain merely by writing about many different saints. Therefore, the book's focus on a single Sadguru is a deliberate choice for achieving a specific spiritual purpose, rather than an omission.