WordPress Menu Register required or Not

Hi there,
With theme check+themeforest check plugin, I have found this recommendation:
RECOMMENDED: No reference to nav_menu’s was found in the theme. Note that if your theme has a menu bar, it is required to use the WordPress nav_menu functionality for it.
I have a menu bar.
But I want to use that menu using Redux Framework ‘SORTER’ field type. That’s why it’s no use WorpPress Menu registration.
And now, I would like to know that if it is required to register menu for releasing Themeforest WordPress Theme.
Thanks in advance.