This is somewhat true. I suspect it’s the genetics thing. You actually can train the body to reduce fast and increase slow twitch fibres.
You can’t train the other way though.
The hard balance is you don’t want to turn him into an endurance athlete because he will lose his power. That’s why Richmond were so careful with Dusty and likely Adelaide with Danger. It was a slow build to play midfield because there greatest asset is power.
Francis is the same I feel.
But also a penchant for soft tissue injuries. So it’s a double whammy!