Hey Damian.
I’ll be honest, this subject does grind on me a bit as I personally don’t like to see fish placed on the ground.
The argument of “not needed where soft long grass is about” isn’t one that's ever going to persuade me personally and the reason why is, you have no element of control regarding what’s there.
Small piece of broken glass, used needle, bottle cap, dog shit etc etc etc all of which can easily be hidden in the grass.
I wouldn’t run around these river banks without my socks n shoes on for the very same reason I wouldn’t lay a fish there.
The thing I don’t get is…. Mats are easily carried and deployed in seconds so if it must go on the deck it’s hardly a chore to use one and by doing so you have 100% control over what that fish is laying on.
It’s just a no brainer surely