I don't hang onto the release during tow.
I never taught to hang onto the release during tow.
In glass ships, we have a looped rope tied to the release and laid across our thigh to make a quick release easier.

Why no holding the release? Many things.....
A sneeze can pull it
Turbulence can pull it
Something sudden (like a bee/wasp flying around) can pull it

You do your thing, I'll do mine.
;-)