Gus has said himself that he was never blessed with a good rig and could never get that super toned look some of the other boys have, no matter how fit he was. Not everyone has the same body shape, and the beauty of AFL is that great players come in all shapes and sizes. If Gus is aerobically fit, whether he has a 6 pack or a 2 pack is absolutely irrelevant.
Jack Watts always looked like a god out there, but it didn't make him the player we all wanted him to be.
Gus has proven time and again that he can play multiple roles to a very high level, and was one of our best players in that third quarter in the grand final just 2 years ago with basically the same body shape.
To doubt him now because he isn't sporting a Petracca physique is silly. Ed Langdon is not ripped either, but nobody is having a go at him.
P.S.- if only all of us can be this 'unfit' 😅