I have listened through elders and in upanyasams that Bhagavan Krishna confided to Uddhavar that he ended his avatara with a heavy heart as he could not help Draupadi during the disrobement even when she surrendered with full faith unto Him. Here is my doubt, when Perumal felt dissatisfied that he did not render her enough help, then why did he wait for her to cry for help? Even worldly people like us protect our children without expecting anything in return but why does Jagan matha and pitha wait for children like us to seek their help or wait until we perform Saranagati? Kindly pardon if this query is disrespectful.

The creators of this universe Perumal and Piratti are not like any ordinary parents. It appears that they have set certain regulations. They grant us birth based upon our karmas. We take birth, enjoy, and suffer according to our karmas.
Similarly, they have set regulations on protection as well. They protect as per karma – if we surrender, then the protection is absolute otherwise it is ‘aprartitho na gopayet’.
If they did not set this regulation, then no being will be under any harm. But a jeevan has to undergo whatever is in store based on karma. To escape from the heat, one must resort to proper means like saranagati so that Bhagavan shall protect. We call him the merciful because he protects us by accepting our mere saranagati.
These are the regulations stipulated by Bhagavan for his creation, protection and salvation. Scriptures have mentioned about this. Books like Tatva Mukta Kalapam provide elaborate details.