Indeed I myself started all this discussion by asking the question: “How come he is talking about Bhakti in JnAna path?” and am going through all this explanation !
The bottom line of all this explanation is: The thinking about the Atman is to take place in the fashion of a relationship of Love.
But the relationship is not supposed to continue for ever.
Instead of that purpose which involves duality, the real bhakti is to desire to get dissolved in that non-dual Ultimate.
I hope you have now understood what it is to have bhakti towards nirguNa.
Also you would have understood why bhakti is the ‘garIyasI sAmagrI’ (the heaviest accessory) for mokSha.