The Sri Vaishnava sect has two sub-sects, Thenkalai and Vadakalai. Vadakalais follow the teachings of Vedanta Desikan, whereas Thenkalais follow the teachings of Pillai Lokacharya. My question is about Pillai Lokacharya. In his verses 19-20 of his Sri Vachana Bhushanam, Pillai Lokacharya discusses how Sharanagati or complete surrender to Vishnu is not affected by the defects of the person surrendering. He cites the example of Arjuna, whom Krishna helped despite all of Arjuna's defects:
The defects of Arjuna, the sustainer of Krishna, the "intimate friend of Keshava", foremost of believers, Lord of conquerors of the senses, were, for example, compassion for and attachment to relatives and fear of killing them. In the opinion of Krishna, the main defect of Arjuna was the fact that he was indifferent to the insult of Draupadi.
I'm interested in the part in bold. My question is, where does Krishna criticize Arjuna's indifference to the disrobing of Draupadi? Is it mentioned in the Mahabharata?
Or is this an unexpressed thought that Krishna had in his head?