I think you’re reading it based on the worsts headline rather than what he actually says, no where does he say he doesn’t want a role in the midfield, he says he’s happy to play wherever the team needs him to and that this year it was a mix of forward and midfield, and that’s. The way the afl is going these days.
He’s smart enough to know that with younger players coming into the team, they’ll get the majority of time on the bench as they don’t have the endurance that multiple preseasons gives you so he’ll have to spend more time on the ground which equates to more time forward.