Thanks for the image.
A direction for that specific flush mount was not located, but this was the closest I could find.
https://jetboaters.net/threads/correct-way-to-attach-tow-rope-to-tow-hook.21586/
Wrapping the loop around the tab, possibly several times, then through the loop, then over the tab.
Does that work or does it unwrap?
The objective is to have the load supported by wrapping around the tab, not all the force put onto the end of the loop.