Only the Guru can tell. We cannot speculate why Guru Sahib chose not to add his bani to the Sri Guru Granth Sahib. We should not also try to pass a judgement on this decision of the Guru. Remember that Waheguru and Guru never make a mistake. What ever they do is right and should not be questioned.
This is false, "Banee is from GuR". Gurbani is "of" Gur or about Gur/Creator.prakash.s.bagga said:It appears that we are in confusion about the source of Banee. From Gurbani we can know that the Banee is from GuR and that is why Banee is refered as Gurbanee.
The element of understanding GuR related to Gurbani and outside of Gurbani. Gurbani in SGGS is a teacher. One learns and lives and become capable of learning more throughout one's life beyond the examples given in SGGS.prakash.s.bagga said:Therefore by understanding GuR we can get the answer of the question of this thread. Prakash.S.Bagga
See Gurus questioned the present actions of the people. You are questioning the past action of Guru. The only way to answer is to achieve the wisdom of Guru or meet someone who has it. Similarly, Bhagat Kabeer ji had a lot more dohay, but all were not added to Guru Granth Sahib.